List of geocoding systems

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Geocoding is the process of finding associated geographic coordinates (often expressed as latitude and longitude) from other geographic data, such as street addresses, or ZIP codes (postal codes).

Two lists are included here; one for the coding schemes, and one for systems that can encode and decode to and from a particular scheme.

Encoding and decoding services[edit]

These systems encode and decode data to and from a particular scheme (schemes listed below).

Web services[edit]

  • HERE Geocoder Free under 'Base' license for up to 10,000 queries per day; various commercial license options available.
  • MapQuest Free up to 5,000 queries per day with license restrictions; various commercial license options available.
  • Google Maps Free up to 2,500 queries per day, but with numerous restrictions such as an obligation to display Google Maps pictures when using the service.
  • Yahoo BOSS PlaceFinder Non-commercial free up to 2,000 queries per day, but with numerous restrictions such as an obligation to display Yahoo Maps pictures when using the service. Does not include Australia or many Asian countries.
  • Bing Maps (Microsoft) Free for "public-facing, non-password protected Web sites"; various commercial licence options. 10,000 transactions per 30 day period
  • Services using OpenStreetMap data include:
    • nominatim.openstreetmap.org - Free. Maximum of 1 request/s using the public Nominatim web service.[1]
    • open.mapquestapi.com - Another Nominatim deployment
  • USC Geocoder Free in batches of 2,500. US only. Uses various reference data sources.
  • GovMapper Geocoding Free up to 1,500 queries per day. Uses rooftop city government data, combined with best of national data sources.
  • SmartyStreets Certain services free for schools, libraries, churches, nonprofits, and startups. No cap on the daily usage amount.
  • OpenCage Geocode Free up to 2,500 queries per day, no limitations/restrictions
  • Geocodio Free up to 2,500 queries per day, no limitations/restrictions
  • Data Science Toolkit website
  • More...

Downloadable[edit]

Coding schemes[edit]

Some of these code systems are free for use, others have different licences.

Administrative

Airport Codes

Geodesey

Sport

Telephony & Radio Broadcasting

Postal Address

  • Postal codes, area, worldwide, country-codes by UPU, free
  • NAC, area codes (area can be indefinitely small)
  • NUTS area code, partially administrative, worldwide: countries, Europe : country to community
  • OpenPostcode, opensource global algorithm (local adaptations as Irish & Hong Kong postcodes).[3]

Mapping not Geodesey

References[edit]