Postcode API Explained: Look Up, Map and List ZIP Codes

Описание: The Geoapify Postcode API, explained on real Seattle maps, one problem at a time, with the parameters that solve each one.

Six problems: find a ZIP code on the map, find the ZIP code at a point, show the real ZIP code area, find ZIP codes near a location, get every ZIP code in a city or region, and find ZIP codes starting with a few digits.

Parameters covered: postcode, countrycode, lat and lon, geometry, filter (circle, rect, place), limit, bias, offset, text, lang, format, apiKey.

Postcode API docs: https://apidocs.geoapify.com/docs/pos...
Playground: https://apidocs.geoapify.com/playgrou...
OpenAPI spec: https://apidocs.geoapify.com/assets/o...
Free API key: https://myprojects.geoapify.com/

Chapters:
0:00 Intro
0:22 About the API
0:52 Find a ZIP code on the map
1:37 Find the ZIP code at a point
2:22 Show the real ZIP code area
3:12 ZIP codes near a location
4:33 Every ZIP code in a city or region
5:43 Find ZIP codes starting with …
6:15 Other options
6:43 What you get back
7:25 Limits
8:30 Recap

Postcode data: US Census (ZCTAs), OpenStreetMap contributors, GeoNames. Map: © OpenMapTiles © OpenStreetMap contributors. Counts checked on October 27–28, 2026; credits per the Geoapify pricing docs.

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