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Non-Marine Clay Shrink-Swell Soils
Non-marine clay shrink swell soils in Fairfax County. These are soils containing other shrinking-swelling clays that can lead to foundation distress if precautions are not taken... -
Comprehensive Plan - Base Recommendation
Planned land use at the baseline level. Refer to the Comprehensive Plan text for interpretation and for options above the baseline level. This layer has been updated to include... -
Building Additions
Building additions contains additions to building structures that would not be captured as part of the actual building structure. The original data capture of the data in this... -
Police Stations
The locations of the police stations within Fairfax County. -
Tax Administration's Real Estate - Legal Data
This table contains the legal description information including legal address (site address), deeded land area, and tax district for properties within Fairfax County. There is a... -
Supervisor Offices
Locations of the Supervisor District offices within Fairfax County. -
Non-County Trails
Trails within and around Fairfax County that are not maintained by Fairfax County. Contributors include: the National Park Service, Town of Herndon, Reston Association, City of... -
Stormwater Easements
Stormwater easements (ex: storm drainage, storm sewer, floodplain) as captured from recorded plats using coordinate geometry (COGO) capture method. All easements are contained... -
High School Attendance Areas
Attendance areas for each high school in Fairfax County. -
Tree Cover - 2015
This layer was extracted from the 2015 land cover raster and converted to polygons. The polygons represent areas of tree canopy derived from classification of Worldview-2... -
Previously Mapped Marine Clay
These areas were mapped as marine clays in previous surveys. Marine clays are high shrink-swell soils that can cause foundation distress. They are sometimes referred to as... -
Tree Cover - 2011
This layer was extracted from the 2011 land cover raster and converted to polygons. The polygons represent areas of tree canopy derived from classification of Worldview-2... -
Data Inventory
List and description of datasets available on Open Data for Fairfax County, Virginia -
Soils - 2018
This data set is based upon the 2011 soil survey prepared by the US Department of Agriculture-Natural Resources Conservation Service. The 2011 soil survey was prepared to... -
Soils - 2011
This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was... -
Census 2020 Block
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... -
School Regions
School regions within Fairfax County. Regions are administrative divisions of the Fairfax County Public Schools and there are 5 regions in Fairfax County. -
Human Services Offices
Human services offices within Fairfax County. “HS_Region” is the office for each human services region, “DFS_Area” is the offices for the Department of Family Services Areas;...
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