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A simple Plain Old Ruby Object wrapper for geocoding with Google Maps.


  1. Set your Google Maps API key, which Google now requires, as an environment variable:

    export GOOGLE_MAPS_API_KEY=[your key]
  2. Add GoogleMapsGeocoder to your Gemfile and run bundle:

    gem 'google_maps_geocoder'

    Or try it out in irb with:

    require './lib/google_maps_geocoder/google_maps_geocoder'

Security note

GoogleMapsGeocoder is cryptographically signed. To insure the gem you install hasn’t been tampered with, add my public key as a trusted certificate and then install:

gem cert --add <(curl -Ls
gem install google_maps_geocoder -P HighSecurity

Ready to Go in One Step

chez_barack = '1600 Pennsylvania DC'


Get the complete, formatted address:

 => "1600 Pennsylvania Avenue Northwest, President's Park, Washington, DC 20500, USA"

...standardized name of the city:
 => "Washington"

...full name of the state or region:

 => "District of Columbia"

...standard abbreviation for the state/region:

 => "DC"


The complete, hopefully self-explanatory, API is:

  • GoogleMapsGeocoder#city
  • GoogleMapsGeocoder#country_long_name
  • GoogleMapsGeocoder#country_short_name
  • GoogleMapsGeocoder#county
  • GoogleMapsGeocoder#exact_match?
  • GoogleMapsGeocoder#formatted_address
  • GoogleMapsGeocoder#formatted_street_address
  • GoogleMapsGeocoder#lat
  • GoogleMapsGeocoder#lng
  • GoogleMapsGeocoder#partial_match?
  • GoogleMapsGeocoder#postal_code
  • GoogleMapsGeocoder#state_long_name
  • GoogleMapsGeocoder#state_short_name

For compatibility with Geocoder, the following aliases are also available:

  • GoogleMapsGeocoder#address
  • GoogleMapsGeocoder#coordinates
  • GoogleMapsGeocoder#country
  • GoogleMapsGeocoder#country_code
  • GoogleMapsGeocoder#latitude
  • GoogleMapsGeocoder#longitude
  • GoogleMapsGeocoder#state
  • GoogleMapsGeocoder#state_code


Complete RDoc documentation is available at

Contributing to GoogleMapsGeocoder


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Copyright © 2011-2022 Roderick Monje. See LICENSE.txt for further details.