Background

GIS Data for Fairfax County

On the Fairfax County GIS website, visitors can explore a comprehensive range of geospatial resources, including access to over 120 free GIS data layers available for viewing and downloading on the **Open Geospatial Data** page. The site offers an interactive **Geospatial Property Data Guide** that details the types of property data maintained by the GIS & Mapping Services Division. Users can also view multi-year aerial photography collections via the **Aerial Photography** online viewer and access detailed topographic information through the county's **Light Detection And Ranging (LiDAR) elevation data** and related applications. Additionally, the website provides useful department resources such as the **Interactive Map Gallery**, **Static (PDF) Map Gallery**, and GIS FAQs, making it an invaluable tool for governments, researchers, students, and the private sector who need reliable geographic information and mapping capabilities for Fairfax County. Accessing any data or tools on the site is subject to the county’s [GIS disclaimer](https://www.fairfaxcounty.gov/maps/disclaimer).