ZIP Code 66451

66451 is one of Kansas's ZIP codes, delivering to addresses in Lyndon, Osage County.

City: Lyndon
County: Osage County
State: Kansas
Prefix: 664xx

Where this code sits

66451 is part of the 664xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lyndon.

Lyndon Kansas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 66451 delivers to without sharing its boundary.

785 Area code 785

ZIP codes nearest 66451

The ZIP codes whose reference points sit closest to 66451.
ZIP code	Distance	Delivers to
ZIP code 66543	4.3 mi	Vassar, KS
ZIP code 66523	8.1 mi	Osage City, KS
ZIP code 66528	8.7 mi	Quenemo, KS
ZIP code 66510	9.6 mi	Melvern, KS
ZIP code 66537	11 mi	Scranton, KS
ZIP code 66413	12 mi	Burlingame, KS
ZIP code 66076	13 mi	Pomona, KS
ZIP code 66524	13 mi	Overbrook, KS

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 66451, plotted from its record coordinates.

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

Scope ZIP code 66451. 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.