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Find a Commonwealth ResourceArlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Arlington County - GIS Portal
This map service contains historical aerial photograph index layers representing aerial imagery acquisition years from 1934 through 1989 for Arlington County, Virginia. Each index polygon identifies the footprint and…
Updated Nov 2, 2026
Datathon 2025
This dataset contains the mapped locations of VDOT Mile Marker Signs (also known as Reference Location Signs or Mile Post Signs). These are physical roadside signposts installed for field reference and may differ from…
Updated Oct 17, 2026
Fairfax County
This layer represents the geographic boundaries of Supervisor Districts within Fairfax County. Contact: Fairfax County Office of Elections Data Accessibility: Publicly Available Update Frequency: As Needed Last Revision…
Updated Oct 8, 2026
Fairfax County
Geographic boundary, portraying extent and limits of land recognized as Fairfax County, Commonwealth of Virginia. Defined in part by both physical features (Potomac and Occoquan Rivers), and monumented legal boundaries…
Updated Oct 8, 2026
Datathon 2025
This map provides condition of pavement for VDOT maintained roads only. Pavement condition data is collected on all interstate, primary, and secondary routes. Pavement condition data is collected each year, and the work…
Updated Oct 17, 2026
Fairfax County
Areas of radon potential within Fairfax County. These are short-term test results from a study conducted by the Fairfax County Health Department during the winters of 1986-87 and 1987-88 found that radon levels above…
Updated Oct 8, 2026
Arlington County - GIS Portal
The Technology Zones layer identifies designated Technology Zone areas within Arlington County, Virginia. These polygon features are used to locate and visualize areas that fall within specific technology-focused…
Updated Nov 2, 2026
Datathon 2025
This map provides the location and condition of all bridges and large culverts in the Commonwealth. The solid icons on the map represent culverts while the open icons represent bridges. Zoom in on the map to display…
Updated Oct 17, 2026
Datathon 2025
This layer consists of Average Daily Traffic (ADT) volumes with Vehicle Classification Data for most recent years, on Interstate, Arterial and Primary Routes. It also includes a list of each Interstate and Primary…
Updated Oct 17, 2026
Arlington County - GIS Portal
The Bike Comfort Index is a polyline feature layer maintained by Arlington County's Department of Environmental Services. It contains approximately 6,700 street and trail segments, each scored according to a bicycle…
Updated Nov 2, 2026
Fairfax County
Storage tanks contains the different types of tanks that hold different types of liquids in Fairfax County. The original data capture of the data in this layer was completed in 2013 using stereo models from the 2009…
Updated Oct 8, 2026
Datathon 2025
This application provides condition of pavement for VDOT maintained roads only. Pavement condition data is collected on all interstate, primary, and secondary routes. Pavement condition data is collected each year, and…
Updated Oct 17, 2026
Science Museum of Virginia
Music’s impact on the brain has been studied for years now. Simply listening to music increases blood flow to the regions of our brain that involve emotions. The limbic system, where our brain processes memory and…
Updated Jul 6, 2026
Fairfax County
Per Chapter 118 requirements, a countywide map of perennial streams and waterbodies to be used for regulatory purposes was developed through field surveys conducted in 2002-2003. For more information, please…
Updated Oct 8, 2026
