Tools
ZIP code tools
Small, fast utilities built on the same sourced database as the directory — and on the same free API you can use yourself.
- Distance between ZIP codesMiles and kilometres between any two ZIP or postal codes, shareable by link.
- ZIP codes within a radiusEvery code around a centre point with distances — download as CSV.
More on the way: shipping-zone estimates, area-code lookup and side-by-side ZIP comparison. Something you need? Tell us.