The DC GIS program operates data maintenance and enhancement procedures to keep data current and introduce new and valuable GIS layers to the District government and public. The most recent data additions and updates to the DC GIS data services are:

• Address Point
• Address Alias Point (Points of Interest)
• Air Right Lot
• Alley Frontage
• Appropriation
• Building Restriction
• CAMA Condominium*
• CAMA commercial*
• CAMA Residential*
• Collaborative Area
• Highway Plan
• Owner Polygon
• Owner Point
• Places of Worship
• Planned Unit Development
• Public Easement
• Public School
• Parcel Lots
• Record Lots
• Reservation
• Right of Way
• Sale Point
• Square
• Street Roadway Segment
• Street Centerline
• Tax Lots
• Wireless Hot Spot
• Zoning

*CAMA - Computer Aided Mass Appraisal

For District government, the data is available in the DC GIS Central geodatabase, accessible through Citrix on the DC GIS tool bar.

For the public, the data is accessible through the DC GIS Data Clearinghouse/Catalog search engine. Enter a keyword or layer name into the search field to return metadata and download options. Download options are available for both ESRI and Google formats. DC GIS data can also filtered by layer theme for grouped results.  The advanced search allows for specialized searching. 

If you have any comments about the site or experience any difficulties, please email us.