DC GIS 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:

Vector Property Map

• Air Right Lot
• Alley Frontage
• Building Restriction
• Highway Plan Line
• Owner Poly (Common Ownership layer)
• Owner Point
• Parcel
• Public Easement
• Record Lot
• Reservation
• Sale Point
• Square
• Tax Lot

Planimetric Layers–updated from May 2008 aerial photography

• Building Footprints
• Bridges and Tunnels
• Geodetic Control Points
• Obscured Areas
• Railroads
• Roads
• Sidewalks
• Wooded Areas

Miscellaneous

• Address Points
• Bicycle Count Locations
• Certificate of Occupancy
• Census Tract (2000)–2006 Income Data Added
• Civic and Neighborhood Associations
• Elementary School Attendance Zones
• Gas Stations
• High School Attendance Zones
• HIV Clinics
• Hotels
• Litter Cans
• Main Street Program Areas
• Middle School Attendance Zone
• Parking Meters
• Recycling Pickup Days
• Red Light Cameras
• Available Retail Sites
• Senior Service Network Sites
• Smart Bike Locations
• Speed Humps
• Street Centerlines
• Street Segments
• Street Trees
• Supercan Pickup Days
• Trash Pickup Days
• Traffic Monitoring Stations

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.