The soil classification areas from the 1990 soil survey for Fairfax County. Not all areas of Fairfax County were classified during this project so there are areas that do not have soil information.

,,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 National Cooperative Soil Survey standards and utilized nationally recognized names for soil types. The 2018 soil map legend is identical to the 2011 legend, but the soil boundaries have been shifted to better correlate with topography and land use. This map was officially adopted by the Board of Supervisors in 2018. All construction plans submitted to the County for permits that require the inclusion of soils mapping should reference the 2018 soils map.,,

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 prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information. This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

Quarries in Fairfax County.

This table contains information about the parcel including livable units, land use code, zoning, and utility description for properties in Fairfax County. There is a one to many relationships to parcels data. Refer to this document for descriptions of the data in the table.

Existing land use categories for current land uses in Fairfax County as of the VALID_TO date in the attribute table. For methodology and a data dictionary please visit: https://www.fairfaxcounty.gov/demogrph/opendata/ipls-methodology-data-dictionary.pdf

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Landfill properties in Fairfax County.

The 2010 census tracts within Fairfax County. This data was acquired from the US Census Bureau.

This table contains property sales information including sale date, price, and amounts for properties within Fairfax County. There is a one to many relationship to the parcel data. Refer to this document for descriptions of the data in the table.