ZIP Code 73121

73121 is one of Oklahoma's ZIP codes, delivering to addresses in Oklahoma City, Oklahoma County.

City

Oklahoma City

County

Oklahoma County

State

Oklahoma

Prefix

731xx

Where this code sits

73121 is part of the 731xx range, the group of codes handled by one mail processing centre. Oklahoma City is served by 76 ZIP codes in total; the full list, with the county each falls in, is on the Oklahoma City page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73121 delivers to without sharing its boundary.

ZIP codes nearest 73121

The ZIP codes whose reference points sit closest to 73121.
ZIP code	Distance	Delivers to
ZIP code 73140	1.3 mi	Oklahoma City, OK
ZIP code 73111	2.0 mi	Oklahoma City, OK
ZIP code 73117	2.4 mi	Oklahoma City, OK
ZIP code 73105	3.1 mi	Oklahoma City, OK
ZIP code 73104	3.7 mi	Oklahoma City, OK
ZIP code 73113	3.8 mi	Oklahoma City, OK
ZIP code 73124	3.8 mi	Oklahoma City, OK
ZIP code 73126	3.8 mi	Oklahoma 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 73121, plotted from its record coordinates.

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

Scope ZIP code 73121. 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.