Learn how to make and retrieve on-line maps and data about Washington DC via web-services. Please feel free to integrate these web services into your website(s). 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. Support for these services are available to District of Columbia agencies and their contractors only. If for some reason the services are interrupted or unavailable a notice is posted through the DC GIS subscription service.
Web Data Services
|MAR Location Verifier
||Verify or find a DC address, intersection, block, square suffix lot and place name
|Property Data Services
||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
|Point Area Report
||Returns results based on Maryland State Plane Coordinate System and Category ID
|Political Area Report
||Query political area information
|Political Area Summary
||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
Web developers can integrate these web services into their website(s). Using these will save time, money and the uncertainty of having the most current data.
Service at a Glance
Provided By: OCTO
Phone: (202) 727-6482
Days: Monday - Friday
Time: 9:00 am - 5:00 pm
Location: 200 I Street SE, 5th Floor Washington, DC 20003
Request this Service
- Use the MAR Web Data Service in .NET
- Use the MAR Web Data Service in Client Script
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