zip4lookup

ZIP Code 67123 — Potwin, KS

67123 is a standard (street delivery) ZIP code serving Potwin, Kansas, in Butler County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.

Free. No account needed.

ZIP code 67123 at a glance

ZIP code67123
Primary cityPotwin
StateKansas (KS)
CountyButler FIPS 20015
ZIP typeStandard (street delivery)
Time zoneAmerica/Chicago
Population867
Coordinates37.946760, -96.993520

How ZIP+4 works in 67123

The four digits after the hyphen encode a delivery segment inside 67123. In practice one segment usually means:

That is why 67123 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.

Nearby ZIP codes

Showing the closest twelve. See every ZIP code within 25 miles of 67123.

ZIPCityDistance
67154 Whitewater, KS 7.1 mi
67144 Towanda, KS 9 mi
67041 Elbing, KS 10.4 mi
67017 Benton, KS 10.4 mi
66840 Burns, KS 10.9 mi
67042 El Dorado, KS 12.6 mi
67228 Wichita, KS 15.2 mi
67055 Greenwich, KS 16.1 mi
66866 Peabody, KS 16.8 mi
67226 Wichita, KS 17.4 mi
67114 Newton, KS 17.9 mi
67147 Valley Center, KS 18 mi

Questions about 67123

What is the ZIP+4 code for 67123?

67123 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 67123, you need to look up a specific street address to get them.

What city is 67123?

67123 is assigned to Potwin, Kansas, in Butler County.

Do I need to use the ZIP+4?

It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.

Need thousands of these?

Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.

Bulk lookup API docs