ZIP Code 66770

66770 is one of Kansas's ZIP codes, delivering to addresses in Riverton, Cherokee County.

City: Riverton
County: Cherokee County
State: Kansas
Prefix: 667xx

Where this code sits

66770 is part of the 667xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Riverton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 66770 delivers to without sharing its boundary.

620 Area code 620

ZIP codes nearest 66770

The ZIP codes whose reference points sit closest to 66770.
ZIP code	Distance	Delivers to
ZIP code 66739	3.6 mi	Galena, KS
ZIP code 66713	3.8 mi	Baxter Springs, KS
ZIP code 66728	6.2 mi	Crestline, KS
ZIP code 66778	8.8 mi	Treece, KS
ZIP code 74360	8.9 mi	Picher, OK
ZIP code 74335	10 mi	Cardin, OK
ZIP code 74363	11 mi	Quapaw, OK
ZIP code 64834	11 mi	Carl Junction, MO

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 66770, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 66770. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.