Search Results

Northern Virginia population growth, minority-majority transition, foreign born population transformation, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). Population Overall Population of Northern Virginia Data Northern Virginia is on the front lines of a demographic transformation shaping the United States. There has been an extraordinary amount of population growth in Northern Virginia. The April 1st Decennial Census population of Northern Virginia was 1,466,350 in 1990, 1,815,197 in 2000, 2,230,623 in 2010, and 2,550,377 in 2020. On July 1, 2024 the Northern Virginia population was estimated to be 2,601,818. Detailed information on the region and its counties and cities are available on the following population topics . Population Total Migration Births/Deaths Foreign Born Race and Ethnicity

Federal impact reports and studies on Northern Virginia, DC Metro Area, and Virginia. Federal Monitoring Reports/Resources NVRC Presentations School Planners Forum - June 4, 2025 Federal Impact on School Enrollment Presentation - NVRC's Senior Regional Demographer, Jill Kaneff, presented at the annual regional school planners forum hosted by Loudoun County Public Schools. The forum brought together school planners from across the D.C. region and beyond. Guidance on key demographic and economic indicators to monitor was provided to assist schools plan for the federal impacts on enrollment during these uncertain times caused by the federal layoffs and cutbacks. Virginia House Emergency Committee on the Impacts of Federal Workforce and Funding Reductions, April 8, 2025 NVRC's Senior Regional Demographer, Jill Kaneff, and the NVRC Chair presented at the committee meeting. The Northern Virginia Federal Workforce presentation is an overview of Northern Virginia federal workforce and data resources available for policy makers and the general public. Economy Virginia Economic Impacts The University of Virginia's Weldon Cooper Center for Public Service produces a quarterly economic forecast for the Commonwealth of Virginia. The center also publishes special studies and presentations that focus on the federal impacts. View the Weldon Cooper Center's research reports. Housing Market Bright MLS Bright MLS tracks and reports on the housing market conditions of Northern Virginia's and the Greater D.C. metropolitan area. Bright MLS News and Insights offers insightful research and surveys, covering topics such as the effects of DOGE and federal spending cuts. Featured informative resources also include the following. Monthly Market Report The monthly market reports include a Washington D.C. metro area market report and individual Northern Virginia jurisdiction market reports . These reports present market trends and comparative graphs showing current and historical data. Special Presentation in Coordination with NVRC Lisa Sturtevant, PhD, Chief Economist with Bright MLS, presented at the Loudoun County Public Schools Planners and GIS Forum on June 4, 2025: D.C. Metropolitan Area Housing Market Trends and Outlook . This presentation includes insightful comparative market trends not found in the monthly market reports. The forum brought together school planners from across the D.C. region and beyond. This presentation was part of a two set series on the federal impacts, with the first presentation being NVRC's presentation on Federal Impact on School Enrollment . Northern Virginia Association of Realtors The Northern Virginia Association of Realtor tracks and reports on the housing market conditions of the inner jurisdictions of Northern Virginia with data provided by George Mason University's Center for Regional Analysis and Bright MLS. On an annual basis, a report on housing market forecasts is produced in conjunction with the Center for Regional Analysis at George Mason University (GMU-CRA).

Northern Virginia population growth, minority-majority transition, foreign born population transformation, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). Population Overall Reports, maps, and charts are best viewed on a desktop or tablet. Population of Northern Virginia Overview Northern Virginia is on the front lines of a demographic transformation shaping the United States. There has been an extraordinary amount of population growth in Northern Virginia. In 2024, the Northern Virginia population was 77% more than in 1990 when the population was 1,466,350. Population Estimate 2024 2,601,818 The COVID-19 pandemic began in the United States in March 2020 and the emergency declaration was lifted in May 2023. The pandemic changed the country's and region's demographic migration patterns significantly due to the substantial rise in remote work. Remote work is providing people with the opportunity to move to places away from employment centers. Most people relocate for family-reasons, housing reasons, and for more affordable, lower cost of living according to the U.S. Census Bureau Current Population Survey. Young adult, first time home buyers are the largest, working-age demographic group that are choosing to move to more affordable areas. In the four years since the pandemic, the country has had a wave of out-migration from urban areas to suburban and rural areas or smaller urban areas. The shift to remote work is one of the most impactful societal changes impacting demographic trends in the country and region, and likely will shape future trends for a long time. From July 1, 2020 to July 1, 2021, the nation's most populous areas, including Northern Virginia, experienced significant out migration and population declines. This was the first and only annual decline in Northern Virginia since the Census Bureau annual record keeping began in 1970, with a decline of an estimated 7,800 persons. Annual Estimates/Trends Decennial Census/Trends Annual Estimates Annual Estimates: Population, Natural Change (Births and Deaths), Migration Annual estimates of population and the components of change (domestic migration, international migration, births, and deaths) paint a portrait of the annual growth patterns in the towns of Northern Virginia. Annual estimates are not based on a full census of the population. Rather, they are estimates based on a compilation of multiple administrative data pieces such as birth records and residential building permits. The estimates are obtained from the U.S. Census, which benchmarks estimates to the Decennial Censuses. Decennial Census data represents the population as of April 1 of the year, whereas the annual estimates are as of July 1 of each year. Decennial Population Decennial Census Data: Population The Decennial Census is based on a survey of the entire population. It is conducted once a decade. The 2020 Decennial Census population was released on August 12, 2021. The Decennial Census regional, county, and city population data is shown in the interactive charts that follow. Key Facts: Decennial Growth In 2020, Northern Virginia's population was 2,550,337 according to the Decennial Census. The population increased from 1,466,409 in 1990, a 74% increase in the 30 year period from 1990 to 2020. Northern Virginia added approximately 320,000 people in this past decade, 2010 to 2020. This is 96,000 or 23% less than the previous decade, signaling a significant slowdown in the pace of growth. However, growth still continues at a high amount. Virginia’s population grew by 630,369 from 2010 to 2020, of which 50.7% of that growth was in Northern Virginia. In 2020, 29.5% of Virginia’s population was in Northern Virginia, compared to 27.9% in 2010. Growth peaked in 2010. Growth in Northern Virginia has slowed since 2010. It has trended down annually since 2010, but it is still large and impactful growth that the the region is facing. The localities in Northern Virginia the growth is occurring in this decade is different in some ways than in the 1990s and 2000s. The preponderance of population growth of Northern Virginia continues to be located in the outer-ring suburbs of Prince William, Loudoun Counties, and the Cities of Manassas and Manassas Park. However, the share of the region's growth that is in the outer-ring has dropped from 65.1% in the 2000 to 2010 period to 61.5% in the 2010 to 2020 period. Arlington has seen its share of the region's growth more than double from what it experienced in the 2000's. Alexandria has seen its share of the region's growth become 2.2 times what it experienced in the 2000's. Intensification of developmental pressures this decade in the inner-core is a response to the millennial generation preferences, demographics, urbanization, transportation and other market pressures.

Northern Virginia educational attainment, public school student enrollment, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). Educational Attainment Overall Reports, maps, and charts are best viewed on a desktop or tablet. Educational Attainment of Northern Virginia Overview Northern Virginia localities are home to some of the most highly educated residents in the nation. This high education level of the region's citizens creates a strong, flourishing business community. The percentage of Northern Virginia's population age 25 or more holding a bachelor's or higher degree is 61.9%, which is nearly double the United States, and holding a graduate or professional degree is 30.2%, which is more than double the United States. About the Data and Proper Data Interpretation Educational attainment data is sourced from the U.S. Census Bureau 2000 Census and the American Community Survey (ACS). It is important to note that any data sourced from the ACS is based on a small sample of the population of a place. Areas with smaller populations, such as the cities of Northern Virginia, may have a larger margin of error in the data due to the survey sample size being small. This is less of an issue the larger the population. The margin of error is shown in the popup that is displayed when hovering over a bar in the bar charts. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and is not considered statistically significant. In addition to the margin of error, the accuracy of the American Community Survey data for an area can be gaged by evaluating the trend. If the data has a clear trend then the data from one period to the next can be deemed reliable. Educational Attainment - Current Bachelor's or Higher Degrees - Current Five-Year Estimates All jurisdictions in the United States are included in the five-year American Community Survey estimates. The percentage of residents age 25 or older with bachelor's or higher degrees, for all jurisdictions in Northern Virginia, are displayed in the following graph. Out of all 3,144 jurisdictions in the USA, six of the twenty highest ranked for the percentage of residents age 25 or older with bachelor's or higher degrees are located in Northern Virginia. Those include the City of Falls Church (1st), Arlington County (2nd), the City of Alexandria (4th), Fairfax County (5th), Loudoun County (8th), and Fairfax City (16th). Overall, Northern Virginia's share is 61.9% for residents age 25 or older with bachelor's or higher degrees, which is signicantly higher than Virginia and nearly twice the USA. Bachelor's or Higher Degrees - Current One-Year Estimates Those jurisdictions with a population of 65,000 or more are included in the one-year American Community Survey estimates, of which there are five Northern Virginia jurisdictions included. The share of residents age 25 or older with bachelor's or higher degrees for the five largest jurisdictions in Northern Virginia are shown in this graph. The Northern Virginia regional data, for the one-year estimates, is representative of the five largest jurisdictions in Northern Virginia only. Out of the 850 jurisdictions with a population of 65,000 or more in the USA, four of the top seven for the percentage of residents age 25 or older with bachelor's or higher degrees are located in Northern Virginia. Those include Arlington County (1st), the City of Alexandria (2nd), Fairfax (4th), and Loudoun (7th). Graduate or Professional Degrees - Current Five-Year Estimates All jurisdictions in the United States are included in the five-year American Community Survey estimates. The percentage of residents age 25 or older with graduate or professional degrees, for all jurisdictions in Northern Virginia, are displayed in the following graph. Out of all 3,144 jurisdictions in the USA, six of the twenty highest ranked in the percentage of residents age 25 or older with graduate or higher degrees are located in Northern Virginia. Those include the City of Falls Church (1st), Arlington County (3rd), the City of Alexandria (6th), Fairfax County (11th), City of Fairfax (18th), and Loudoun County (19th). Overall, Northern Virginia's share is 30.2% for residents age 25 or older with graduate or professional degrees, which is nearly double Virginia and more than double the USA. Graduate or Professional Degrees - Current One-Year Estimates Those jurisdictions with a population of 65,000 or more are included in the one-year American Community Survey estimates. The percentage of residents age 25 or older with graduate or professional degrees for the five largest jurisdictions in Northern Virginia are shown in this graph. The Northern Virginia regional data, for the one-year estimates, is representative of the five largest jurisdictions in Northern Virginia only. Out of the 850 jurisdictions with a population of 65,000 or more in the USA, four of the 25 highest ranked for the percentage of residents age 25 or older with graduate or professional degrees are located in Northern Virginia. Those include Arlington (1st), the City of Alexandria (3rd), Fairfax (9th), and Loudoun (21st). Educational Attainment - Historic Compared to Current Bachelor's or Higher Degrees - Historic Compared to Current Five-Year Estimates Northern Virginia is one of the most educated places in the United States. Since 2000, the region's population has experienced an upward trend in the share of persons age 25 and older , becoming even more highly educated than it already was. Northern Virginia's age 25 and older population holding bachelor's or higher degrees in 2000 was 50.7% and in the 2020-2024 period was 61.9%, compared to the United States which was 24.4% and 35.7% respectively. The considerable growth of the highly educated contributes to a flourishing and robust business community in Northern Virginia. Bachelor's or Higher Degrees - Historic Compared to Current One-Year Estimates The trend in persons age 25 and older holding a bachelor's or higher degree, for the regions large jurisdictions (population of 65,000 or more), are shown in the following graph. The Northern Virginia regional data, for the one-year estimates, is representative of the five largest jurisdictions in Northern Virginia only. Graduate or Professional Degree - Historic Compared to Current Five-Year Estimates Northern Virginia's age 25 and older population holding professional and graduate degrees in 2000 was 22.1% and in the 2020-2024 period it was 30.2%, compared to the United States which was 8.9% and 14.1% respectively. The considerable growth of the highly educated contributes to a flourishing and robust business community in Northern Virginia. Graduate or Professional Degree - Historic Compared to Current One-Year Estimates The trend in persons age 25 and older holding a graduate or professional degree, for the regions large jurisdictions (population of 65,000 or more), are shown in the following graph. The Northern Virginia regional data, for the one-year estimates, is representative of the five largest jurisdictions in Northern Virginia only.

Northern Virginia town population growth, minority-majority transition, foreign born population transformation, and more demographics, data and graphs. Analyzed by the Northern Virginia Regional Commission (NVRC). Foreign Born and Immigrants of Towns Reports, maps, and charts are best viewed on a desktop or tablet. Foreign Born and Immigrant Population of Towns Overview The Washington, D.C. metropolitan area is one of the most diverse in the country when taking into consideration the minority and foreign born (immigrant) population make-up. Northern Virginia contains a sizable amount of the metropolitan area's diverse population. The foreign born or immigrant population is transforming the region and many of it's towns. Note, the terms foreign born and immigrant are used interchangeably throughout the NOVA Region Dashboard. It is immigration that has been driving many of the major demographic trends in the region, including: School enrollment changes Sizable increases in the number of Hispanics and Asians Population and labor force growth About the Data and Proper Data Interpretation Foreign born population data is sourced from the U.S. Census Bureau 2000 Census and the American Community Survey. All of the incorporated towns in Northern Virginia have a population of less than 65,000 persons. One-year ACS estimates do not exist for incorporated places with a population of less than 65,000. All incorporated towns and places in the United States are included in the five-year ACS estimates. It is important to note that any data sourced from the ACS is based on a small sample of the population of a place. The ACS estimates for places with smaller populations such as Clifton, Dumfries, Hamilton, Haymarket, Hillsboro, Lovettsville, Middleburg, and Quantico can be unreliable if the margin of error is large. The margin of error is shown in the popup that is displayed when hovering over a bar in the bar charts. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and is not considered statistically significant. In addition to the margin of error, the accuracy of the American Community Survey data for an area can be gaged by evaluating the trend. If the data has a clear trend then the data from one period to the next can be deemed reliable. Foreign Born Population - Current Foreign Born Population Share - Current The region's highest ranked county/city is Manassas Park City, ranking 8th in the nation at 36.8%. Herndon boasts one of the largest foreign-born populations in the country, at 42.2%. Statistically, Herndon is not significantly different from Manassas Park due to the data's margins of error. Towns that are estimated to have lower foreign born population shares than the Commonwealth of Virginia are all located within rural Loudoun County (Lovettsville, Purcellville, Hamilton, Middleburg, Round Hill), except for Clifton which is located in rural Fairfax County. Note, the town of Hillsboro's 2020-2024 estimate of 29.1% foreign born is considered highly unreliable. This is evidenced by the large rise compared to previous five-year periods, as shown in the Historic Compared to Current chart in the next section. It is additionally reinforced by the wide margin of error of +/-37.6%, which stems from the town's small survey sample size. Foreign Born Population - Historic Compared to Current Foreign Born Population Share - Historic Compared to Current Immigration has been driving many of the major demographic trends in the region. The foreign born population is transforming the region. Northern Virginia's population was 21.4% foreign born in 2000 and has risen to 28.2% currently. The largest transformations since 2000 have occurred in the towns of Dumfries, Haymarket, Leesburg, Lovettsville, and Occoquan. All of these incorporated towns are located in the outer-core, which is where the majority of the region's growth has occurred. Note, the American Community Survey is a survey with a small sample size. Due to the small size of many Northern Virginia towns and small sample size of the survey, the median household income of towns should be used with caution and the margin of error of the median household income should be taken into consideration. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and the data should be used with caution. The margin of error is shown in the popup that is displayed when hovering over a bar in the bar charts. In addition to the margin of error, the accuracy of the American Community Survey data for an area can be gaged by evaluating the trend. If the data does not have a clear trend, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and the data should be used with caution.

Economic data compiled by the Northern Virginia Regional Commission's as part of the One Region immigration study, Coronavirus (COVID-19) immigration study, and dashboard to assess the economic impact of immigrants in Northern Virginia. Entrepreneurship Information on the overall Northern Virginia immigrant population, as presented in the original report published in March 2020. Overall Information on the Northern Virginia economic impact of immigrants during COVID-19, as presented in the addendum report published in October 2020. COVID-19

Northern Virginia towns educational attainment, public school student enrollment, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). Educational Attainment of Towns Reports, maps, and charts are best viewed on a desktop or tablet. Educational Attainment of Towns Overview Northern Virginia localities are home to some of the most highly educated residents in the nation. This high education level of the region's citizens creates a strong, flourishing business community. The percentage of Northern Virginia's population age 25 or more holding a bachelor's or higher degree is 61.9%, which is nearly double the United States, and holding a graduate or professional degree is 30.2%, which is more than double the United States. About the Data and Proper Data Interpretation Educational attainment data is sourced from the U.S. Census Bureau 2000 Census and the American Community Survey. All of the incorporated towns in Northern Virginia have a population of less than 65,000 persons. One-year ACS estimates do not exist for incorporated places with a population of less than 65,000. All incorporated towns and places in the United States are included in the five-year ACS estimates. It is important to note that any data sourced from the ACS is based on a small sample of the population of a place. The ACS estimates for places with smaller populations such as Clifton, Dumfries, Hamilton, Haymarket, Hillsboro, Lovettsville, Middleburg, and Quantico can be unreliable if the margin of error is large. The margin of error is shown in the popup that is displayed when hovering over a bar in the bar charts. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is not considered statistically significant and is likely due to statistical sampling error. In addition to the margin of error, the accuracy of the American Community Survey data for an area can be gaged by evaluating the trend. If the data has a clear trend then the data from one period to the next can be deemed reliable. Educational Attainment - Current Bachelor's or Higher Degrees - Current The population age 25 or over with bachelor's or higher degrees of the counties, cities, and incorporated towns in Northern Virginia is shown in this graph. All towns, except for Dumfries, have higher percentages of bachelor's or higher degree holders than the United States and Commonwealth of Virginia. The towns of Clifton and Vienna have higher percentages of bachelor's or higher degree holders than Northern Virginia overall. Graduate or Professional Degrees - Current The population age 25 or over with graduate or professional degrees of the counties, cities, and incorporated towns in Northern Virginia is shown in this graph. The towns of Clifton and Vienna have higher percentages of graduate or professional degree holders than Northern Virginia overall. Educational Attainment - Historic Compared to Current Bachelor's or Higher Degrees - Historic Compared to Current The trend over time in the population age 25 or over with bachelor's or higher degrees in Northern Virginia and its incorporated towns are shown in this graph. Due to the small size of many towns, the educational attainment data of towns should be used with caution and the margin of error of the educational attainment data should be taken into consideration. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and the data should be used with caution. Graduate or Professional Degree - Historic Compared to Current The trend over time in the population age 25 or over with graduate or professional degrees in Northern Virginia and its incorporated towns are shown in this graph. Due to the small size of many towns, the educational attainment data of towns should be used with caution and the margin of error of the educational attainment data should be taken into consideration. If there is a large increase or decrease in the estimate from one time period to the next, and the margin of error is large and overlaps other periods, then the large change between time periods is likely due to statistical sampling error and the data should be used with caution.

Northern Virginia educational attainment, public school student enrollment, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). Education Overall Education Data of Northern Virginia What is it that sets Northern Virginia apart from other places, that gives Northern Virginia its competitive edge, that makes it such a unique, dynamic and interesting place? It’s unparalleled human capital, the people who live here, work here, and come here from all corners of the globe. Proximity to the nation’s capital has transformed Northern Virginia and the entire Washington metropolitan area into one of America’s — and the world’s — most dynamic, fastest growing, economically advanced, highly-educated , prosperous, and culturally-diverse regions on the planet. The region has some of the top, most renowned public school systems in the nation. The quality of education in the region's public school systems draws numerous amounts of families to the region. The demographic, social, and economic profile of this region shows it. Detailed information on the region and its counties and cities are available on the following education topics . Educational Attainment Student Enrollment

Northern Virginia economic and demographic maps to assess the federal cutback impacts. Federal Monitoring Maps Reports, maps, and charts are best viewed on a desktop or tablet. Federal Workforce Maps Northern Virginia Regional Commission presents a collection of federal civilian employment maps. The data analysis was performed by Northern Virginia Regional Commission using U.S. Census Bureau, 2023 American Community Survey 5-Year Estimates, Table S2408. The data is displayed by zip code tabulation areas, which are approximations of the USPS Postal Service zip codes. Two maps in the collection 1. Federal Share of Total Civilian Employment Click Map to View 2. Density per Square Mile - Federal Civilian Employment Click Map to View

Language spoken and Limited English Proficiency LEP)information compiled by the Northern Virginia Regional Commission's as part of the One Region immigration study, Coronavirus (COVID-19) immigration study, and data dashboard to assess the economic impact of immigrants in Northern Virginia. Language Spoken Key Facts Language Spoken Understanding the population with language barriers is particularly critical for the quick and accurate dissemination of health, safety, and public information. 2014 to 2018 Five-Year Estimates Key Facts: There are an estimated 584,000 people in Northern Virginia who live in a household where English is not spoken at home as the primary language. Of those, 31.2 percent of the population age five and over speak Spanish at home. Of those, the second most spoken language is Korean at 5.5 percent. There are an estimated 134,200 people in Northern Virginia who report speaking English less than well, making up 5.4 percent of the region's total population.

Northern Virginia population growth, minority-majority transition, foreign born population transformation, and more demographics, data and graphs by region and county. Analyzed by the Northern Virginia Regional Commission (NVRC). People / Population Information on the people of the overall Northern Virginia region and it's county and cities. Overall Information on the people of Northern Virginia's incorporated towns . Towns

Information on the census purpose, responding, tracking 2020 Census responses and participation in Northern Virginia. A regional information and data resource from the Northern Virginia Regional Commission. 2020 Census Reports, maps, and charts are best viewed on a desktop or tablet. Analysis of 2020 Decennial Census NVRC Regional Data Analysis and Analysis Timeline Northern Virginia Regional Commission plans to do extensive data analysis of the region. Results of the data analyses will be posted on this NOVA Region Dashboard are currently posted under the People section. A Hou sing section will soon be added to the dashboard to assess the 2020 Census Results and trends. NVRC's regional analyses utilizing the results of the 2020 Census Demographic Profile and Demographic and Housing Characteristics released by the U.S. Census Bureau in May 2023 will be occur during the 2nd-half of 2023 and will continue into 2024. Note, the 2020 Decennial Census does not provide characteristics on education and economics. Census Bureau Nationwide Data Analysis The Census Bureau is continually publishing 2020 Census analyses through a series of data visualizations , America Counts stories , and videos to help illustrate and explain the Census results and the country's demograph ic characteristics. Access Data and Data Release Timeline The 2020 Decennial Census is being released in multiple phases through multiple products. The Demographic Profile, Demographic and Housing Characteristics, and redistricting data all are injected with random statistical “noise” using the differential privacy approach to prevent disclosure of personal information. Caution should be utilized when using this data. The larger the population size of a geographic area, the more accurate the data and the diminished likelihood of having implausible data with the 2020 Census. The 2020 Census has statistical noise infused to protect confidentiality. The impact of statistical noise decreases with larger geographies. For more information, on the statistic noise injected, privacy, and accuracy, see the information under Privacy and Accuracy of 2020 Census Data . Demographic Profile and Demographic and Housing Characteristics - Released May 2023 The 2020 Census Demographic Profile and Demographic and Housing Characteristics were released. These files contain 2020 Census data on characteristics of the population (i.e. age, sex race), characteristics of households (i.e. household size, rent/own, families). Access and view Northern Virginia regional data: County/City County/City Demographic Profile County/City Demographic and Housing Characteristics Incorporated Towns Incorporated Towns Demographic Profile Incorporated Town Demographic and Housing Characteristics Redistricting Demographic Data - Released August and September 2021 Redistricting dem ographic data released to the public. This release contains population, race/ethnicity, age, housing units, and housing tenure data for c ounties, cities, and geographies as small as census blocks. The second product set will contain more detail demographic and housing characteristics data. Access and view Northern Virginia regional data: County/City County/City Redistricting Data Incorporated Towns Not Available Detailed Demographic and Housing Characteristics DHC-A - Released September 2023 The Detailed Demographic and Housing Characteristics file were released in three phases, with the first one being the Detailed DHC-A released September 2023. Included in this release are detailed population counts, sex, and age for approximately 370 racial and ethnic groups and places of origin, such as German, Lebanese, Chinese, and Mexican. Detailed Demographic and Housing Characteristics DHC-B - Released August 2024 The Detailed Demographic and Housing Characteristics Detailed DHC-B released August 2024. The Detailed DHC-B includes detailed household type (e.g., family or non-family) and tenure for approximately 370 racial and ethnic groups and places of origin , such as German, Lebanese, Chinese, and Mexican. Detailed Demographic and Housing Characteristics S-DHC - Released September 19, 2024 The Detailed Demographic and Housing Characteristics Supplemental DHC (S-DHC) was released September 2024. It includes complex relationships between the characteristics about households and the people living in them, including average household size, average household size by age and tenure, and household and family type for people under 18 years old. Privacy and Accuracy of 2020 Census Data The Demographic Profile, Demographic and Housing Characteristics, and redistricting data all are injected with random statistical “noise” using the differential privacy approach to prevent disclosure of personal information. For the Demographic and Housing Characteristics, the Census Bureau released statistical error metrics (Excel File) to help users understand the variation in the data introduced by using differential privacy. Additional guidance to users is provided by the U.S. Census Bureau in the blog post, What to Expect: Disclosure Avoidance and the 2020 Census Demographic and Housing Characteristics File . For decades, the U.S. Census Bureau has used different techniques to protect individual privacy through their Disclosure Avoidance System (DAS). Differential Privacy (DP) is the latest technique. This technique was chosen because enhanced privacy protection is needed due to advances in technology that enable the ability to identify individuals when combined with other information. DP impacts data accuracy more than any other technique previously applied to decennial census results. DP will add random data (“noise”) to counts for geographic areas below the state level, to prevent identification of individuals. The amount of noise added to the data will be greater than any prior decennial census technique. The impact of statistical noise decreases the larger the population size of a geographic area. From 2019 through 2022, Northern Virginia jurisdictions, through the Northern Virginia Regional Commission (NVRC), participated in the U.S. Census Bureau’s DP demonstration data review and provided feedback to the U.S. Census Bureau. The following document is a brief overview of DP and the impacts it has on data quality. Click on the image to download. For an in-depth description of DP go to the Census Bureau's DP website . Download a copy of the Differential Privacy Fact Sheet Privacy Accuracy