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 (including road networks and highways in Australia and New Zealand)

• GeoNames (including New Zealand place names and postcodes)

• 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

• G-NAF (Geoscape Australia, via data.gov.au)

• ABS Postal Areas (Australian Bureau of Statistics)

• Australian state address datasets: NSW Spatial Services, Queensland Government, Vicmap (Victoria), theLIST (Tasmania), and ACT Government

• Australian local council datasets, some via OpenAddresses, such as City of Sydney, Brisbane, Gold Coast, Melbourne, and Adelaide

• Microsoft Global ML Building Footprints (Australia)

• LINZ (Toitū Te Whenua Land Information New Zealand): NZ Addresses, NZ Primary Parcels, and NZ Building Outlines

• New Zealand local council datasets, some via OpenAddresses, such as Greater Wellington, Dunedin, Rotorua, and Nelson/Tasman

• NZ Post

• National Records of Scotland

• Scottish Government

• NISRA (Northern Ireland Statistics and Research Agency)

• House of Commons Library (MSOA names)

• ONS Postcode Directory

• Historic Counties Trust (UK historic counties)

• INEGI (Mexico)

• Australian Bureau of Statistics: ASGS Edition 3 statistical geographies, 2021 Census, SEIFA 2021, Personal Income in Australia, and Local Government Areas

• Geoscape Australia Administrative Boundaries (electorates)

• Stats NZ (territorial authorities)

• 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.

• Australia address data. Contains Open G-NAF data from Geoscape Australia, obtained via data.gov.au and licensed under the Open G-NAF End User Licence Agreement. Under that licence, addresses derived from G-NAF must not be used to generate or compile addresses for the purpose of sending mail unless each address is verified against a second source.

• ABS Postal Areas (Australian Bureau of Statistics) are licensed under CC BY 4.0.

• New Zealand postal codes. The data within the Postcode Network File is sourced from NZ Post. NZ Post copyright reserved. New Zealand Post Limited owns, or has a licence to use, all intellectual property rights in the data incorporated in this product or service. NZ postal codes may be used for internal purposes only, as set out in Section 15.3 of our Terms of Use.

• New Zealand address, parcel, and building outline data. Sourced from the LINZ Data Service and licensed for reuse under CC BY 4.0.

• Australian and New Zealand road network and highway data: © OpenStreetMap contributors, available under the Open Database License (ODbL).

• Microsoft Global ML Building Footprints (Australia) are available under the Open Database License (ODbL).

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

• UK census geographies from the Office for National Statistics are published under the Open Government Licence v3.0. If you display or redistribute the data, attribute it as: "Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right."

• Scottish Output Areas, Data Zones, Intermediate Zones and settlements from National Records of Scotland: "Contains NRS data © Crown copyright and database right. Contains Ordnance Survey data © Crown copyright and database right."

• Scottish urban-rural classification: "Source: Scottish Government, licensed under the Open Government Licence v3.0."

• Northern Ireland Data Zones, Super Data Zones, settlements and the urban-mixed-rural classification: "Source: NISRA. Contains OSNI information licensed under the Open Government Licence v3.0."

• MSOA alternative names from the House of Commons Library are published under the Open Parliament Licence v3.0: "Contains Parliamentary information licensed under the Open Parliament Licence v3.0."

• UK postcode and place lookups use the ONS Postcode Directory under the Open Government Licence v3.0.

• Historic Counties Trust asks to be credited when you use its UK historic county data.

• Mexican gazetteer data from INEGI: "Fuente: INEGI, Marco Geoestadístico 2025".

• Australian Bureau of Statistics data (ASGS Edition 3, the 2021 Census General Community Profile tables G01, G02 and G37, SEIFA 2021, Personal Income in Australia 2022-23, and Local Government Areas) is licensed under CC BY 4.0. Attribution is the only condition, for example: "Source: Australian Bureau of Statistics, Australian Statistical Geography Standard (ASGS) Edition 3."

• Australian electorate boundaries from Geoscape Australia Administrative Boundaries are licensed under CC BY 4.0. Geoscape asks for this attribution: "Incorporates or developed using Administrative Boundaries © Geoscape Australia licensed by the Commonwealth of Australia under Creative Commons Attribution 4.0 International licence (CC BY 4.0)."

• New Zealand town and city names from LINZ and territorial authorities from Stats NZ are licensed under CC BY 4.0.

• 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.