Geographic Information Systems (GIS)

Largo Government Center
9201 Basil Court, Suite 250
Largo, MD 20774
38˚ 54’ 51.2” N 76˚ 50’ 48.2 W

Telephone: (301) 883-5440 | (301) 883-5150
Fax: (301) 883-5229


 OIT-GIS is responsible for being the central repository for all GIS related data gathered by the Prince George’s County agencies. We provide back to the agencies the highest quality GIS data, maps and GIS applications to enhance their day to day business activities. We provide support to the Homeland Security agencies with GIS technology to help ensure a safe Prince George’s County.


To compile accurate, real time Geographical Information that is stored and displayed for all Prince George’s County Agencies and the public. This is made available using the latest technology and supplied through a widely accessible, fast, and easy-to-use medium.


To Create Enterprise Geographic Information Systems that will serve our Customers in their Strategic Planning and Decision Making process.


The Maryland National Capital Park and Planning Commission’s (MNCPPC) Information Management Division is your source for purchasing quality data and paper maps. They are responsible for capturing and maintaining the Planimetric data and the aerial imagery for Prince George’s County. OIT-GIS and MNCPPC maintain a close relationship to support all agencies for the County. For more information regarding what GIS data and Maps are available for purchase, please visit their website.

What is GIS?

A Geographic Information System (GIS) is an automated mapping system that uses computers to help map and analyze data that exist on the earth according to their geographic location. With a GIS, you can capture spatial information and store it, integrate it, manipulate it, analyze it and display it. This spatial information is able to help the user make decisions and help resolve issues before "real time" events begins.​