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Effective Thursday, April 1st, the Development Services Building will be open for limited public counter services.  GIS services can be seen here. 

GIS encourages customers to continue processing all Address Validations and PWC Service Authority Addressing Listings ONLINE ONLY in order to receive the FASTEST SERVICE by emailing us at  GIS forms can be downloaded here.

PLEASE NOTE that address validations must be completed prior to obtaining zoning and building permit approval for all commercial properties.

To learn more about address validations and PWC Service Authority Address Listings, please visit our Addressing and Permits website.

For questions related to Addressing Plan Review, please email

For general inquiries, contact 703-792-6840 and leave a message or email us at Same day response during normal business hours.

This is in effect until further notice. GIS will continue to update this website as information changes.


Geospatial Technology Services is responsible for creating and maintaining Prince William County’s spatial information. Find the map products to suit your needs with help from the experienced staff. Members of the Systems and Solutions Team work to make GIS data more accessible for customers by developing and maintaining all GIS related desktop and web applications. The Data & Analytics Team works to develop and maintain the spatial data layers and creates GPINs (Grid Parcel Identification Number) in the County.  The Addressing and Map Services Team works to validate and assign addresses and reviews GIS-related items on land and building plans. Geospatial Technology Services also houses the county demographer, who is responsible for calculating quarterly population and housing estimates and making demographic data easily accessible to the general public. 


What is GIS?

A geographic information system (GIS) lets you visualize, analyze, manage and interpret geographical data to understand relationships, patterns, and trends.



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