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Find a Commonwealth ResourceLoudoun County
More Metadata The data set identifies the Historic Overlay Districts (HODs) of the Loudoun County Zoning Ordinance, approved in December 2023. The term "Historic Overlay District" includes, without limitation, the…
Updated Oct 10, 2026
Loudoun County
More Metadata The data set of water wells and pollution sources in the county that have been identified and assigned a unique SITE-ID number. Drain fields are independent, private sewage disposal systems denoted with…
Updated Oct 10, 2026
Loudoun County
More Metadata This Water Well layer was created in March 2010 to provide an easily accessiable spatial database of water wells only. It also provides additional attribute information on Status, Depth, etc. The original…
Updated Oct 10, 2026
Loudoun County
More Metadata Data updated daily. A parcel is a tract or plot of land surveyed and defined by legal ownership. Data were compiled from plats and deeds recorded at the Clerk of the Court and from historic tax maps.…
Updated Oct 10, 2026
Loudoun County
More Metadata The Limestone Overlay District (LOD) is a zoning overlay district adopted by the Loudoun County Board of Supervisors on 2/17/2010 and administered by the Loudoun County Department of Building and…
Updated Oct 10, 2026
Loudoun County
More Metadata The zoning layer constitutes the official zoning map for Loudoun County and is a component of the official zoning ordinance. It reflects expiration of grandfathering provisions of the 1972 Zoning Ordinance…
Updated Oct 10, 2026
Loudoun County
More Metadata This layer contains the geographical boundaries of the Metropolitan Washington Council of Government's Traffic Analysis Zones (TAZ) of Loudoun County, Virginia. TAZs are designed to be relatively…
Updated Oct 10, 2026
Loudoun County
DATA MAINTENANCE / UPDATE FREQUENCY: ANNUALLY - DATA LAST UPDATED BASED ON 2023 IMAGERY More Metadata Tree Points are a base map data layer derived by automated processes and processed for cartographic representation at…
Updated Oct 10, 2026
Loudoun County
More Metadata This layer identifies the Legacy Route 28 Optional Overlay Districts in Eastern Loudoun County. The districts provide additional development options for the properties mapped as specified in Article 4…
Updated Oct 10, 2026
Loudoun County
More Metadata Data updated daily. Address points mark the location of each addressable structure and its access point. The access point is the place where a driveway intersects the road. The building point is where the…
Updated Oct 10, 2026
Loudoun County
More Metadata Data updated daily. Street centerline was originally developed from the road features on the County's 1:2400 base map. Both address range and a link to street names are included as data attributes. The…
Updated Oct 10, 2026
Loudoun County
More Metadata This GIS layer contains the geographical boundaries of the 2010 Census Designated Places (CDP) for Loudoun County, Virginia. CDPs are delineated to provide data for concentrations of population in…
Updated Oct 10, 2026
Loudoun County
More Metadata This GIS layer contains the geographical boundaries of the 2010 census blocks for Loudoun County, Virginia. The 2010 Census block boundaries were used for statistical data collection and tabulation…
Updated Oct 10, 2026
Loudoun County
More Metadata This GIS layer contains the geographical boundaries of the 2010 census block groups for Loudoun County, Virginia. The 2010 Census block group boundaries are used for Census Bureau statistical data…
Updated Oct 10, 2026
Loudoun County
More Metadata This GIS layer contains the geographical boundaries of the 2010 census tracts for Loudoun County, Virginia. The 2010 Census tract boundaries are used for Census Bureau statistical data tabulation purposes,…
Updated Oct 10, 2026
Loudoun County
More Metadata The county is divided into subareas to facilitate planning services, demographic forecasting, capital facility planning, and service delivery. The subareas also differentiate communities of interest as…
Updated Oct 10, 2026
Loudoun County
More Metadata Road Casings are a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. Captured as polygons, these features represent roads, parking lots,…
Updated Oct 10, 2026
Loudoun County
More Metadata Building Footprints are a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. The polygon features represent the outlines of buildings and…
Updated Oct 10, 2026
Loudoun County
More Metadata The Commonwealth of Virginia grants certain powers to incorporated municipalities. There are seven towns in the County. Washington Dulles International Airport is also included due to its jurisdictional…
Updated Oct 10, 2026
Loudoun County
The stormwater structures data is comprised of points (inlets, manholes, pipe ends, culvert ends, and control devices). The pipe and culvert point structures, typically one at each end of the pipe/culvert line, include…
Updated Oct 10, 2026
