How to Search and Access Data

Use the search bar and map at the top of the page, or the links to the left, to find data. Datasets can be filtered to contain only the features of the dataset of interest. Data are offered in several formats including: CSV, KML, shapefile, and JSON. It is suggested that downloaded data be reprojected to the local coordinate system.


The geographic data layers produced by the Fairfax County GIS & Mapping Service Branch, and any associated maps and applications, are provided as a public resource. Fairfax County makes no warranties, expressed or implied, concerning the accuracy, completeness or suitability of its data, and it should not be construed or used as a legal description. Every reasonable effort is made to ensure the accuracy and completeness of the data.

Pursuant to Section 54.1-402 of the Code of Virginia, any determination of topography or contours, or any depiction of physical improvements, property lines or boundaries is for general information only and shall not be used for the design, modification, or construction of improvements to real property or for flood plain determination.

Copyright by the Government of Fairfax County, Virginia (“Fairfax County”). Except as provided herein, all rights are reserved. Authorization to reproduce material for internal or personal use by any user of this information is granted by Fairfax County, the copyright owner.


Error reports or questions about Fairfax County’s geospatial data should be directed to the Fairfax County Geographic Information Systems and Mapping Services Branch of the Department of Information Technology