For years the District of Columbia has provided public access to city operational data through the Internet. Now the District provides real-time data from multiple agencies to citizens; a catalyst ensuring agencies operate as more responsive, better performing organizations. Use the data catalog below to subscribe to a live data feed in Atom format and access data in XML, Text/CSV, KML or ESRI Shapefile formats. Please note that by accessing the data catalog and feeds, you agree to our Terms of Use. Please read before accessing the data. All data visualizations on maps should be considered approximate. The visualizations provided by this application include only records that can be mapped. If you would like to narrow your results, please enter your search criteria and utilize the search feature again.
Source Data/Metadata XML Text/CSV Atom (GeoRSS support) KML/ESRI Maps Download
DC GIS via OTR Assessment Neighborhoods ? Feb 1 '12, Feb 1 '12
Assessment Neighborhoods
DC GIS via OTR Assessment Subneighborhoods ? Feb 1 '12, Feb 1 '12
Assessment subneighborhoods
DOH Assisted Living Residential Facilities ? Jul 15 '10
Provides a business directory that lists all licensed Assisted Living Residential Facilities in the District of Columbia..
DC GIS via OP Census Block Groups - 2010 DC ? Aug 29 '11, Aug 29 '11
Census block groups generally fit to the snapbase.
DC GIS via OP Census Blocks - 2010 - DC ? Jun 21 '12, Jun 21 '12
Census blocks generally fit to the snapbase.
DC GIS via Census Bureau Census Tracts - 1930 - DC ? May 1 '09, May 1 '09
1930 Census Tracts
DC GIS via Census Bureau Census Tracts - 1940 - DC ? May 1 '09, May 1 '09
1940 Census Tracts
DC GIS via Census Bureau Census Tracts - 1950 - DC ? May 1 '09, May 1 '09
1950 Census Tracts
DC GIS via Census Bureau Census Tracts - 1960 - DC ? May 1 '09, May 1 '09
1960 Census Tracts
DC GIS via Census Bureau Census Tracts - 1970 - DC ? May 1 '09, May 1 '09
1970 Census Tracts
DC GIS via Census Bureau Census Tracts - 1980 - DC ? May 1 '09, May 1 '09
1980 Census Tracts
DC GIS via Census Bureau Census Tracts - 1990 - DC ? May 1 '09, May 1 '09
1990 Census Tract Areas including basic census data
DC GIS via Census Bureau Census Tracts - 2010 - DC ? Jun 21 '12, Jun 21 '12
2010 Census Tracts just geography
DC GIS via OP Neighborhood clusters ? Jan 12 '04, Jan 12 '04
Defines the boundaries of the 39 clusters of neighborhoods now used by OP and other agencies for planning and management
DC GIS via USPS Zip Codes ? Apr 26 '13, Apr 26 '13
5 digit Zip Code Boundaries
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