The City of Manassas Enterprise Geographic Information System (GIS) group is part of the city’s Information Technology division. Manassas GIS is responsible for developing, maintaining, coordinating, and distributing GIS data and its related technology solutions. These solutions are provided for the public and City of Manassas departments. This site provides a wide variety of interactive maps and applications, printable maps, and additional information.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The All Roads Shapefile includes all features within the MTDB Super Class "Road/Path Features" distinguished where the MAF/TIGER Feature Classification Code (MTFCC) for the feature in MTDB that begins with "S". This includes all primary, secondary, local neighborhood, and rural roads, city streets, vehicular trails (4wd), ramps, service drives, alleys, parking lot roads, private roads for service vehicles (logging, oil fields, ranches, etc.), bike paths or trails, bridle/horse paths, walkways/pedestrian trails, and stairways.

Fireboxes for Prince William County Fire & Rescue along with City of Manassas, Manassas Park, MCB Quantico, Stafford County, Fauquier County, Loudoun County, Fairfax County, Fairfax City, Arlington County, and City of Alexandria. Fireboxes are polygons located within first due boundaries. Fireboxes are used in order to determine first due boundaries by calculating time/distance to the centroid of a firebox.