2020 Census Results
The redistricting demographic data file, the first of two 2020 Census products, was released on August 12, 2021. This file contains population, race/ethnicity, age, housing units, and housing tenure data for counties, cities, and geographies as small as census blocks. The second product set will contain more detail demographic and housing characteristics data.
Census Bureau National Data and Analysis
NVRC Regional Data and Analysis
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 website.
Initial analysis of the population of the region is available by navigating to the people data.
The NOVA Region dashboard will be continually updated over the coming months with new analysis and findings presented. Check back regularly!
Data Release Timeline of 2020 Census
August 12, 2021
Redistricting demographic data will be released to the public. The format of the data file will require special software to download and extract data. Visualizations, data dashboards, and America Count stories explaining the finding will be available.
The final set of demonstration data will be released to the public. Demonstration data allow data users to compare a differential privacy infused version of the 2010 Census results with the actual published 2010 Census results. For more information on differential privacy see the "Privacy and Accuracy of 2020 Census Data" section below.
September 16, 2021
A redistricting data toolkit will be released to the public. This will include an online Data Explorer tool that will allow the redistricting 2020 Census demographic data to be easily viewed and extracted using the Census Bureau's data dissemination tool, data.census.gov.
Early in 2022
The Demographics and Housing Characteristics file release data has not been set. This file will contain the 2020 Census data that is not released with the redistricting data file.
Privacy and Accuracy of 2020 Census Data
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 will impact 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.
Since 2019, Northern Virginia jurisdictions, through the Northern Virginia Regional Commission (NVRC), have been participating in the U.S. Census Bureau’s DP demonstration data review and provided feedback to the U.S. Census Bureau, with the latest provided for the April 2021 round, the U.S. Census Bureau's final round of feedback. The following document is a brief overview of differential privacy and impacts it has on data quality. Click on the image to download.