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Develop Websites Using GIS Web Services

DC GIS shares a variety of web map and data services for the public to integrate into their own apps. Using these will save time, money and the uncertainty of having the most current data. Web map services are available in two projections: Maryland State Plane and Web Mercator.

Topics

Web Data Services

Name Description
Verify or find a DC address, intersection, block, square suffix lot and place name
Functions to retrieve property identifiers from Vector Property data
Generate a .jpeg map with user defined parameters including map width, height and layers
View category information based on Category ID
A point-to-polygon service using Category ID and Maryland State Plane Coordinate System
Query a feature based on Feature ID
Returns results based on Maryland State Plane Coordinate System and Category ID
Query political area information
Get all political area information based on Maryland State Plane Coordinate System
Converts Maryland State Plane Coordinate System to United States National Grid or Latitude/Longitude

 

Web Map Services

  Maryland State Plane Web Mercator
Name Sample Description Sample Description
Administrative and Other Boundaries
- - View View
Annotation
- - View View
Business and Economic Development
- - View View
Cultural and Society
- - View View
DC Basemap
View View View View
DC Basemap Dark Gray View View View View
DC Basemap Light Gray View View View View
Demographic
- - View View
Education
View View View View
Elevation
- - View View
Environment
View View View View
Facility and Structure
View View View View
Health
- - View View
Historic
View View View View
Location
View View View View
Orthophoto 2015 View View View View
Orthophoto 2013 View View View View
Orthophoto 2012 View View View View
Orthophoto 2011
View View - -
Orthophoto 2010
View View - -
Orthophoto 2008
View View - -
Orthophoto 2007
View View - -
Owner Polygons
View View View View
Planning, Land Use and Zoning
- - View View
Property and Land
View View View View
Property Square Labels
View View View View
Public Safety
- - View View
Public Service
- - View View
Recreation
- - View View
Transportation
- - View View
Utility and Communication
- - View View