ZIP Code 74637

74637 is one of Oklahoma's ZIP codes, delivering to addresses in Fairfax, Osage County.

City: Fairfax
County: Osage County
State: Oklahoma
Prefix: 746xx

Where this code sits

74637 is part of the 746xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fairfax.

Fairfax Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 74637 delivers to without sharing its boundary.

ZIP codes nearest 74637

The ZIP codes whose reference points sit closest to 74637.
ZIP code	Distance	Delivers to
ZIP code 74650	5.8 mi	Ralston, OK
ZIP code 74633	11 mi	Burbank, OK
ZIP code 74652	16 mi	Shidler, OK
ZIP code 74058	16 mi	Pawnee, OK
ZIP code 74035	20 mi	Hominy, OK
ZIP code 74084	21 mi	Wynona, OK
ZIP code 74045	22 mi	Maramec, OK
ZIP code 74641	22 mi	Kaw City, OK

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 74637, plotted from its record coordinates.

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

Scope ZIP code 74637. 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.