Data Catalog

• County

  Pittsburgh Historic Districts

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Pittsburgh Historic Districts

  • HTML
  • Esri REST
  • GeoJSON
  • CSV
  • KML
  • ZIP
• County

  Historic Area Work Permits

  Montgomery County of Maryland —

  Historic Area Work Permit (HAWP) : All applications for proposed exterior work involving properties listed on the Montgomery County Master Plan for Historic...

  • CSV
  • RDF
  • JSON
  • XML
• County

  City Designated Historic Districts

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Pittsburgh City Designated Historic Districts

  • HTML
  • HTML
  • GeoJSON
  • CSV
  • KML
  • ZIP
• County

  City Designated Individual Historic Sites

  Allegheny County / City of Pittsburgh / Western PA Regional Data Center —

  Pittsburgh City Historic District Individual Properties

  • HTML
  • HTML
  • GeoJSON
  • CSV
  • KML
  • ZIP
• County

  Loudoun Historic Districts

  Loudoun County, Virginia —

  More MetadataThe data set identifies the six county-administered Historic and Cultural Conservation District areas within Loudoun County. The County-designated...

  • HTML
  • ArcGIS GeoServices REST API
  • GeoJSON
  • CSV
  • KML
  • ZIP
• County

  Community Services Resources - Historic Districts

  Arlington County, VA —

  The Arlington Profile combines countywide data sources and provides a comprehensive outlook of the most current data on population, housing, employment, development,...

  • JSON
  • XLS

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

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