Federal datasets are subject to the U.S. Federal Government Data Policy. Non-federal participants (e.g., universities, organizations, and tribal, state, and local governments) maintain their own data policies. Data policies influence the usefulness of the data. Learn more about how to search for data and use this catalog.
More MetadataThe zoning layer constitutes the official zoning map for Loudoun County and is a component of the official zoning ordinance. It reflects expiration of...
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...
More MetadataThis data was produced in compliance with the constitution of the Commonwealth of Virginia and the Code of Virginia, which mandate that counties redraw...
More MetadataThis identifies pollution sources in the county that have been identified and assigned a unique SITE-ID number. The majority of pollution sources are...
More MetadataDrainage is a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. The line features...
More MetadataLoudoun County was founded and surveyed in 1757. Loudoun's boundary with Maryland is the mean low water mark of the Potomac River on the Virginia side;...
More MetadataThis GIS layer contains the geographical boundaries of the 2010 Census Designated Places (CDP) for Loudoun County, Virginia. CDPs are delineated to...
More MetadataThis layer represents the Virginia Senate districts that are within Loudoun County. Virginia Senate districts represent the area that each elected...
More MetadataThis file contains the voting precincts. These precinct boundaries were last reviewed, updated, and adopted by the Board of Supervisors on November 15,...
More MetadataThis identifies pollution sources in the county that have been identified and assigned a unique SITE-ID number. The majority of pollution sources are...
More MetadataThis data was produced in compliance with the constitution of the Commonwealth of Virginia and the Code of Virginia, which mandate that counties redraw...
More MetadataThis Water Well layer was created in March 2010 to provide an easily accessiable spatial database of water wells only. It also provides additional...
More MetadataThe purpose of this layer is to document planned land uses adopted by the County as part of its Comprehensive Plan. Supplemental Information: Data are...
More MetadataThe data set identifies the six county-administered Historic and Cultural Conservation District areas within Loudoun County. The County-designated...
More MetadataThis file contains the voting precincts. These precinct boundaries were last reviewed, updated, and adopted by the Board of Supervisors on November 15,...
More MetadataThis GIS layer contains the geographical boundaries of the 2010 census tracts for Loudoun County, Virginia. The 2010 Census tract boundaries are used...
More MetadataThe data set identifies the six county-administered Historic and Cultural Conservation District areas within Loudoun County. The County-designated...
More MetadataThis GIS layer contains the geographical boundaries of the 2010 census blocks for Loudoun County, Virginia. The 2010 Census block boundaries were used...
More MetadataThe Airport Impact (AI) Overlay District is a zoning overlay district administered by the Loudoun County Department of Building and Development. The...
More MetadataThis Water Well layer was created in March 2010 to provide an easily accessiable spatial database of water wells only. It also provides additional...