Free Tool

ZIP Codes Within a Radius — Free Lookup

Enter a ZIP code and a radius. Get every US ZIP code inside it, with the distance to each — sorted nearest first. Built on official US Census data. No login, no limit games.

All 33,791 US ZIPs
Miles or km
Census data
Download as CSV

How It Works

01

Enter a ZIP + radius

Any 5-digit US ZIP code and a radius up to 500 miles.

02

We search all 33,791 ZIPs

Every US ZIP within the radius, measured center-to-center from official Census coordinates.

03

Copy or download the list

Sorted nearest-first with distances — ready for service areas, shipping zones, or mailing lists.

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FAQ

How do I find all ZIP codes within a radius?

Enter a 5-digit US ZIP code and a radius in miles or kilometres. The tool checks all 33,791 US ZIP codes and lists every one whose center falls inside the radius, sorted nearest first, with the distance to each.

Where does the ZIP code data come from?

Official US Census Bureau 2024 ZCTA (ZIP Code Tabulation Area) data. Distances are measured straight-line between ZIP centers.

Why is a ZIP code I expected missing?

Some ZIP codes are PO-box-only or single-building codes without a geographic area, so the Census does not publish a center point for them. Borderline ZIPs can also fall just outside the radius since measurement is center-to-center.

Can I use this for a service area or shipping zones?

Yes — that is the main use. Download the CSV and use it as a service-area filter, shipping-zone list, or direct-mail target list. To see your own customer addresses across the area on a map, the free InstaMaps Google Sheets add-on does that.

Is there a UK postcode version?

Not yet — this tool covers US ZIP codes. UK postcode radius search is on the roadmap.