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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
Attainable housing communities are eligible to renters based on Area Median Income (AMI) as defined by the U.S. Department of Housing and Urban Development (HUD). AMI is updated annually in April by HUD. The …
Updated Oct 10, 2026
Loudoun County
Loudoun County, Virginia located within the Washington, D.C. metropolitan area, is approximately 520 square miles and has been one of the most-affluent and fastest growing U.S. counties for the last decade. The County’s…
Updated Oct 10, 2026
Loudoun County
Capital Projects Active and Planned in Loudoun County’s Adopted FY 2017 – FY 2023 Capital Improvement Program.
Updated Oct 10, 2026
Loudoun County
The W&OD Trail Features data has been collected by volunteers from AOL working with the Loudoun County Office of Mapping and Geographic Information and the Employer Services Division of…
Updated Oct 10, 2026
Loudoun County
The Loudoun County Heritage Register program highlights significant and diverse heritage resources in the county to encourage a higher level of community awareness, stewardship, and preservation of those resources. The…
Updated Oct 10, 2026
Loudoun County
Please see the "Information" tab in the application.
Updated Oct 10, 2026
Loudoun County
This application uses surface type data to illustrate the extensive network of unpaved roads in Loudoun County, Virginia.
Updated Oct 10, 2026
Loudoun County
This map has been a joint effort between the Friends of Thomas Balch Library Black History Committee and the Office of Mapping and Geographic Information. For more information, visit the Friends of Thomas Balch Library…
Updated Oct 10, 2026
Loudoun County
Loudoun Road Maintenance: This application displays ownership and maintenance responsibility for roads in Loudoun County, Virginia.
Updated Oct 10, 2026
Loudoun County
This map identifies the 1 mile subdivision control areas around the towns of Hamilton and Middleburg VA, as established by Section 1241.03 of the Land Subdivision and Development Ordinance. The control area around…
Updated Oct 10, 2026
Loudoun County
This map identifies the six County-administered Historic and Cultural Conservation District areas and the four towns-administered Historic Districts within Loudoun County. The County-administered districts include…
Updated Oct 10, 2026
Loudoun County
The Residential Communities of Loudoun County map let's you search by address or by residential community (subdivision project) name. Click on a community for more information, including percent complete, the number of…
Updated Oct 10, 2026
Loudoun County
This application includes the geographic location, name, type, address and hours for all the publicly accessible libraries in Loudoun County, Virginia. Loudoun County Public Library Thomas Balch Library …
Updated Oct 10, 2026
Datathon 2025
Methodology to convert 24 hr /365 data to a representative 24 hour day: • Bike and Pedestrian data was acquired from the public websites of Regional Transportation Data Clearinghouse (MWCOG) and from the Counter…
Updated Oct 17, 2026
Loudoun County
The geology of Loudoun County, Virginia, was mapped in 1988 through 1991 under a cooperative agreement between the U.S. Geological Survey (USGS) and the Loudoun County Department of Environmental Resources.This geologic…
Updated Oct 10, 2026
Loudoun County
Sidewalks, trails, and shared use paths are mapped in house by Loudoun County Office of Mapping and Geographic staff using existing base map planimetric data, aerial imagery, and a limited amount of GPS work (primarily…
Updated Oct 10, 2026
Loudoun County
The Big Tree Registry is a list representing some of the largest trees in Loudoun County. Candidates for the Big Tree Registry qualify based upon three characteristics: Tree Height Trunk Circumference 1/4 of the Average…
Updated Oct 10, 2026
