A postal code lookup is a free online tool that reveals the city, region and coordinates behind any postal code in 60+ countries. Pick the country, enter the code, and get an instant detail card with latitude and longitude, a timezone note and a one-click Google Maps link, powered by the free Zippopotam API with no signup.
Look up a postal code
How do I find what city a postal code belongs to?
Pick the country above, then type the postal code into the lookup. The tool queries the free Zippopotam API and returns the place name (city), state or region and coordinates instantly. For example, US 90210 resolves to Beverly Hills, California, and PK 75500 resolves to Karachi, Pakistan, each with a one-click Google Maps link. Results appear instantly with no page reload.
This works for any valid postal code in 60+ supported countries. Invalid codes get a clear not-found message naming the country rather than a guess.
What can you learn from a postal code?
A postal code identifies the delivery area: the city or place name, the state or region, and the approximate latitude and longitude of the area. Businesses use this for shipping zones, tax estimation and service-area checks, while individuals use it to verify addresses.
What a postal code cannot reliably tell you: the time zone (some regions span two), the county in every case, or demographics. Treat it as a postal routing code, not a full location profile.
Why does my postal code show the wrong city?
Many postal codes cover multiple place names, and the database returns the primary one. Your mailing address city can differ from the primary place name while the code itself is correct, which is normal postal behavior and nothing to worry about.
If mail delivers correctly, the code is right. The lookup shows the canonical place name from the database, which occasionally differs from the city on your envelopes.
Is postal code data free to use?
Yes for basic lookups: this tool uses the free Zippopotam API, which needs no key and allows cross-origin requests. Postal data is public in most countries, and many open datasets mirror it, so one-at-a-time searches cost nothing. There is no account, key, or usage quota involved.
For bulk commercial use, check the terms of whichever provider you choose. This lookup is built for quick, unlimited one-at-a-time searches.
FAQs
Is this ZIP code lookup free?
Yes. Look up as many postal codes as you like across 60+ countries with no account and no limits, using the free Zippopotam API.
Which countries are supported?
70 countries, including the United States, Pakistan, the United Kingdom, India, Canada, Australia, Germany and France. Pick any of them from the country dropdown; the list follows Zippopotam's public country table.
What information does a postal code lookup return?
The city (place name), state or region name and abbreviation, latitude and longitude, the country, plus a one-click Google Maps link for the coordinates.
What if the postal code is not found?
You will see a clear not-found message naming the country. Double-check the format: transposed digits, ZIP+4 extensions and missing UK inward parts are the most common mistakes.
Does a postal code tell me the time zone?
Not reliably. Postal codes do not store time zones and some regions span two zones, so the tool links you to a world clock to confirm local time instead of guessing.
Where does the data come from?
The free Zippopotam API, which serves public postal data for 60+ countries with no key required. Real errors are surfaced honestly instead of invented data. A few database rows carry invalid coordinates; the tool reports those honestly instead of plotting a fake location.