Data Catalog

• Master Address Repository Viewer

  District of Columbia —

  The Master Address Repository (MAR) Viewer is part of the District's location services documented in Addressing in DC. It makes locating addresses or place name as...

  • HTML
  • ArcGIS GeoServices REST API

• DC Atlas Pro

  District of Columbia —

  DC Atlas Pro is a mapping tool that contains hundreds of different data layers, organized by category. DC Atlas Pro is the updated version of DC Atlas Plus, both of...

  • HTML
  • ArcGIS GeoServices REST API

• MAR Overview Presentation

  District of Columbia —

  The District of Columbia government uses the Master Address Repository (MAR) to implement intelligent search functionality for finding and verifying addresses, place...

  • HTML

• Points of Interest

  District of Columbia —

  Also known as place names. The dataset contains locations and attributes of address alias points, created as part of the Master Address Repository (MAR) for the Office...

  • HTML
  • ArcGIS GeoServices REST API
  • CSV
  • ZIP
  • GeoJSON
  • KML
  • 1 more in dataset

• Addressing in DC

  District of Columbia —

  The District of Columbia government uses the Master Address Repository (MAR) to implement intelligent search functionality for finding and verifying addresses, place...

  • HTML

• Police Service Area Details

  District of Columbia —

  A web map used for the Police Service Area Details web application.In addition to Police Districts, every resident lives in a Police Service Area (PSA), and every PSA...

  • HTML
  • ArcGIS GeoServices REST API

• MAR Web Geocoder User Guide

  District of Columbia —

  The MAR Web Geocoder is a web browser-based tool for geocoding locations, typically addresses, in Washington, DC. It is developed by the Office of Chief Technology...

  • HTML

You can also access this registry using the API (see API Docs).

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