Data Sources

We are not reselling another geocoder's results. We have developed and continually refined our own proprietary geocoding engine over the past 10+ years. When you submit an address or coordinate pair for geocoding, our geocoding engine interprets your query and delivers a result fueled by underlying source data.

Because we have built our own geocoding engine and have combined many different data sets, results from Geocodio may be different from results from other providers. You can see more on accuracy here.

Geocodio's data sources include:

The following is a non-exhaustive list of data sources. We return the source information with all of our results.

• Local city, county, and state datasets

  • Some of which come from OpenAddresses

• The US Census Bureau

• OpenStreetMap

• GeoNames

• CanVecPlus by Natural Resources Canada

• StatCan

• Legislator information from the UnitedStates project on GitHub

• Ordnance Survey (GB)

• Royal Mail (UK)

• Office for National Statistics (UK)

• Welsh Government

• DataMap.Wales

• Open Civic Data project

Licenses

• Some city and postal code data OpenStreetMap © OpenStreetMap contributors under ODbL. (See OpenStreetMap license.)

• Some city and postal code data GeoNames under CC-BY-4.0.

• TIGER/Line Data and US Census Data are U.S. Government works in the public domain. See the US Census Bureau copyright information.

• OpenAddresses data is under various licenses.

• StatCan and CanVecPlus are published under the Open Government License - Canada

• UnitedStates project is under CC 1.0

• USPS® data. Geocodio holds a nonexclusive license from the United States Postal Service. The price of our service is neither established, controlled or approved by the United States Postal Service. Geocodio advertising is neither approved nor endorsed by the United States Postal Service®.

• UK Address and Location Data. When you use Geocodio to process UK addresses or location data, we may use licensed data sources including Ordnance Survey, Royal Mail's Postcode Address File (PAF), and other UK data providers. Use of these data sources is governed by the licensing terms in the UK Data Services Attachment.

• Open Civic Data project, CC BY-SA 3.0 US.

• All UK political district boundary data is published under the UK Open Government Licence v3.0.

Notes

• Postal codes in Canada. Please note that full postal codes in Canada are proprietary to Canada Post. Therefore, for licensing reasons, when a postal code for a Canadian location has not been provided by the user, Geocodio will return only the first three characters (FSA), which is open-source. If the user supplies a full Canadian postal code with their input, Geocodio will check that the FSA matches our internal data and, for the user’s convenience, return the user-inputted full postal code in the results. Such full postal codes have not been verified or corrected by Geocodio, nor have they been verified against official Canada Post data.