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Find a Commonwealth ResourceVirginia Department of Environmental Quality
selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a…
Updated Nov 4, 2026
Datathon 2025
This service is Virginia data from the 2011 release of the Census Bureau TIGER/Line Shapefile for national counties or equivalent boundaries (tl_2011_us_county.shp) The TIGER/Line Files are shapefiles and related…
Updated Oct 17, 2026
Fairfax County
The 2020 decennial census blocks within Fairfax County. This data was acquired from the US Census Bureau, with fields slightly customized by Fairfax County Department of Management and Budget, Economic, Demographic, and…
Updated Oct 8, 2026
Datathon 2025
The US Census designates certain blocks as urban based on certain criteria (found here ). This layer includes polygons that represent all of the census blocks that were designated as urban as of 2020.
Updated Oct 17, 2026
Arlington County - GIS Portal
This layer presents the 2020 Census tract boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2020 TIGER FGDB . Contact: Department of Environmental Services Data…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2020 Census block group boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2020 TIGER FGDB . Contact: Department of Environmental Services Data…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2020 Census block boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2020 TIGER FGDB . Contact: Department of Environmental Services Data…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2010 Census tract boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2010 Cartographic Boundary Files . Contact: Department of Environmental Services…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2010 Census block group boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2010 Cartographic Boundary Files . Contact: Department of Environmental…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2010 Census block boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2010 Cartographic Boundary Files . Contact: Department of Environmental Services…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2000 Census tract boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2000 Cartographic Boundary Files . Contact: Department of Environmental Services…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2000 Census block group boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2000 Cartographic Boundary Files . Contact: Department of Environmental…
Updated Nov 2, 2026
Arlington County - GIS Portal
This layer presents the 2000 Census block boundaries for Arlington County. The geography and attributes were sourced from US Census Bureau 2000 Cartographic Boundary Files . Contact: Department of Environmental Services…
Updated Nov 2, 2026
Arlington County - GIS Portal
Demographic vulnerability data at the census tract level within Arlington County. It is calculated using values from the American Community Survey (ACS) demographics. The data includes a number of components that make…
Updated Nov 2, 2026
Prince William County
The (Current) Land Use layer was initially constructed for a Chesapeake Bay watershed study to indicate the current land use as specified by the study at that time. This layer is now updated quarterly to show new…
Updated Oct 11, 2026
Fairfax County
The 2020 decennial census tracts within Fairfax County. This data was acquired from the US Census Bureau, with fields slightly customized by Fairfax County Department of Management and Budget, Economic, Demographic, and…
Updated Oct 8, 2026
Fairfax County
The 2020 decennial census block groups within Fairfax County. This data was acquired from the US Census Bureau, with fields slightly customized by Fairfax County Department of Management and Budget, Economic,…
Updated Oct 8, 2026
Fairfax County
The 2020 decennial census designated places within Fairfax County. This data was acquired from the US Census Bureau, with fields slightly customized by Fairfax County Department of Management and Budget, Economic,…
Updated Oct 8, 2026
Datathon 2025
Note: T hese are not official legal boundaries and are not to be used for any funding or population estimates. They are only meant for a visualization of general design guidelines (inside the boundary should be roads…
Updated Oct 17, 2026
