Disclaimer
Where this tool is reliable, where it is not, and when to check an official source.
Last reviewed
Not an official postal source
GetMyPostalCode is an independent site. It is not affiliated with, endorsed by or operated by the United States Postal Service, Royal Mail, Canada Post, Australia Post or any other postal authority. Where those organisations are named in our guides, it is to describe how their systems work.
How results are produced, and why they can be wrong
A result depends on two things that are both approximate: the position your device reports, and a third partyโs view of which postal area contains that position.
- Device accuracy varies. GPS indoors, in dense cities or on a device falling back to Wi-Fi or network positioning can be out by tens or hundreds of metres.
- Boundaries are not intuitive. Postal areas are operational delivery units, not neat geographic shapes. Near an edge, a point can easily resolve to the area next door.
- Data lags reality. Postal authorities change assignments. A geocoding providerโs data reflects some earlier snapshot.
- Some places have no postal code in the usual sense, and a lookup there will simply return nothing.
When to verify
Check the result with the relevant postal authority before you rely on it for:
- legal, tax or government filings;
- insurance applications or quotes;
- emergency or medical information;
- high-value shipments or anything time critical;
- property or address records.
Guides and articles
Our guides are written for general understanding and are checked against official sources at the time of writing, with publication and review dates shown on each one. Postal rules change, and nothing in a guide is legal, financial or professional advice. If you spot an error, tell us and we will correct it.
Data sources
Results come from a third-party reverse geocoding service built on OpenStreetMap data, published under the Open Database License, along with other open datasets. We neither produce that data nor control its accuracy, and the credits are in the footer of every page and on our about page. The provider in use is named in the privacy policy.
External links
We link to third-party sites, including postal authorities, where they are the better source. We do not control them and are not responsible for their content or availability.
Limitation of liability
The site and its results are provided โas isโ, without warranty of any kind. To the fullest extent permitted by law, we accept no liability for any loss or damage arising from use of, or reliance on, this site. The terms and conditions apply in full.