Online Services
DC GIS ArcGIS Server Map Service for Historic MD State Plane
DC GIS ArcGIS Server Map Service for Historic Web Mercator
District of Columbia's ArcGIS online organization (DC AGO) enables DC agencies to quickly create and access maps and data in the cloud.
DC GIS ArcGIS Server Map Service for Location MD State Plane
DC GIS ArcGIS Server Map Service for Location Web Mercator
DC GIS ArcGIS Server Map Service for Location Web Mercator
MAR Web Data Service in dot NET - Location Verifier
The Master Address Repository (MAR) is a database of building addresses, intersections and other location identifiers in the District.
The District of Columbia offers several custom online mapping applications. Some of these are built for DC agency specific goals and business processes while others are focused on serving DC residents and the general public.
DC GIS ArcGIS Server Map Service for Ownership Boundaries in Grey Web Mercator
DC GIS ArcGIS Server Map Service for Ownership Boundaries MD State Plane
DC GIS ArcGIS Server Map Service for Planning Landuse and Zoning Web Mercator
ArcGIS Services Find Polygon by Point
This web page provides an overview of police service geographies for given locations in the District of Columbia.