United States of America population data

The urban areas created by the US Census Bureau "represent densely developed territory, and encompass residential, commercial, and other nonresidential urban land uses. Each urban area must encompass at least 2,000 housing units or at least 5,000 people." They were created by the Bureau following the 2020 census based on the population and housing unit density of individual blocks. The 2020 Census increased the urban population and housing unit count requirements for the first time since 1910, resulting in differences between the 2010 and 2020 boundaries beyond those resulting from population change. In addition, they also stopped distinguishing between "urbanized areas" and "urban clusters" and renamed areas as needed to reflect the updated boundaries. Please see the US Census Bureau website for more information.

ACS 2022 Legal and Statistical Entities Web Map Service; January 1, 2022 vintage

Legal and Statistical Entities Web Map Service; January 1, 2020 vintage

Legal and Statistical Entities Web Map Service; January 1, 2020 vintage

Legal and Statistical Entities Web Map Service; January 1, 2010 vintage

Census Regions, Census Divisions; January 1, 2015 vintage; Generalized

Legal and Statistical Entities Web Map Service; January 1, 2000 vintage

Census Regions, Census Divisions; January 1, 2015 vintage; Generalized

Census Current (2026) WMS Legal and Statistical Entities Web Map Service; January 1, 2026 vintage

Legal and Statistical Entities Web Map Service; January 1, 2000 vintage

Census Regions, Census Divisions; January 1, 2015 vintage; Generalized

ACS 2025 Legal and Statistical Entities Web Map Service; January 1, 2025 vintage

Legal and Statistical Entities Web Map Service; January 1, 2000 vintage

ACS 2013 Legal and Statistical Entities Web Map Service; January 1, 2013 vintage

ACS 2014 Legal and Statistical Entities Web Map Service; January 1, 2014 vintage

Census Regions, Census Divisions; January 1, 2015 vintage; Generalized

ACS 2019 Legal and Statistical Entities Web Map Service; January 1, 2019 vintage

ACS 2014 Legal and Statistical Entities Web Map Service; January 1, 2014 vintage

Census Current (2026) WMS Legal and Statistical Entities Web Map Service; January 1, 2026 vintage

Legal and Statistical Entities Web Map Service; January 1, 2000 vintage

Census Regions, Census Divisions; January 1, 2020 vintage

Legal and Statistical Entities Web Map Service; January 1, 2020 vintage

ACS 2015 Legal and Statistical Entities Web Map Service; January 1, 2015 vintage

ACS 2015 Legal and Statistical Entities Web Map Service; January 1, 2015 vintage

Legal and Statistical Entities Web Map Service; January 1, 2020 vintage

ACS 2016 Legal and Statistical Entities Web Map Service; January 1, 2016 vintage

Legal and Statistical Entities Web Map Service; January 1, 2010 vintage

Census Current (2026) Physical Features Web Map Service; January 1, 2026 vintage

Age, Sex, Race, Ethnicity, Total Housing Units, and Voting Age Population. This service is updated annually with American Community Survey (ACS) 5-year data. Contact: District of Columbia, Office of Planning. Email: planning@dc.gov. Geography: District-wide. Current Vintage: 2019-2023. ACS Table(s): DP05. Data downloaded from: Census Bureau's API for American Community Survey. Date of API call: January 2, 2025. National Figures: data.census.gov. Please cite the Census and ACS when using this data. Data Note from the Census: Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see Accuracy of the Data). The effect of nonsampling error is not represented in these tables. Data Processing Notes: This layer is updated automatically when the most current vintage of ACS data is released each year, usually in December. The layer always contains the latest available ACS 5-year estimates. It is updated annually within days of the Census Bureau's release schedule. Boundaries come from the US Census TIGER geodatabases. Boundaries are updated at the same time as the data updates (annually), and the boundary vintage appropriately matches the data vintage as specified by the Census. These are Census boundaries with water and/or coastlines clipped for cartographic purposes. For census tracts, the water cutouts are derived from a subset of the 2020 AWATER (Area Water) boundaries offered by TIGER. For state and county boundaries, the water and coastlines are derived from the coastlines of the 500k TIGER Cartographic Boundary Shapefiles. The original AWATER and ALAND fields are still available as attributes within the data table (units are square meters). Field alias names were created based on the Table Shells file available from the American Community Survey Summary File Documentation page. Data processed using R statistical package and ArcGIS Desktop. Margin of Error was not included in this layer but is available from the Census Bureau. Contact the Office of Planning for more information about obtaining Margin of Error values.

Legal and Statistical Entities Web Map Service; January 1, 2020 vintage

Census Current (2026) WMS Legal and Statistical Entities Web Map Service; January 1, 2026 vintage

ACS 2017 Legal and Statistical Entities Web Map Service; January 1, 2017 vintage

ACS 2017 Legal and Statistical Entities Web Map Service; January 1, 2017 vintage

Census Tracts, Census Block Groups; January 1, 2022 vintage; Generalized

ACS 2018 Legal and Statistical Entities Web Map Service; January 1, 2018 vintage

ACS 2021 Legal and Statistical Entities Web Map Service; January 1, 2021 vintage