Datasets

Arlington County - GIS Portal

Photo Index 1967

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…

Arlington County - GIS Portal

Photo Index 1980

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…

Arlington County - GIS Portal

Photo Index 1977

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…

Arlington County - GIS Portal

Photo Index 1982

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…

Arlington County - GIS Portal

Photo Index 1983

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…

Arlington County - GIS Portal

Photo Index 1986

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…

Arlington County - GIS Portal

Photo Index 1989

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…

City of Roanoke

Roanoke City School Locator App

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Loudoun County

Loudoun County Owned Electric Vehicle (EV) Charging Stations

This application displays the Electric Vehicle (EV) Charging Stations that are operated and maintained by Loudoun County and available for public use. The number of County operated and maintained Electric Vehicle…

Department of Rail and Public Transportation

Statewide Rail Data Viewer

Visualize rail infrastructure data for the Commonwealth of Virginia from the Department of Rail and Public Transportation. Application updated in 2025.

Datathon 2025

Mile Marker Signs

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…

Fairfax County

Supervisor Districts

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…

City of Alexandria - GIS Portal

Sanitary Sewer Lines

City of Alexandria - GIS Portal

Sanitary Sewer Device

City of Alexandria - GIS Portal

Storm Sewer Line

City of Alexandria - GIS Portal

Storm Sewer Device

Fairfax County

Political Jurisdictions

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…

Fairfax County

Radon Potential Areas

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…

Arlington County - GIS Portal

Technology Zones

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…

Loudoun County

Park & Ride Lookup

Park and Ride interactive map. Identify the location of each park and ride lot in relation to any street address within Loudoun County. Park and Ride Lot Locations and Information