ZIP Code 73090

73090 is one of Oklahoma's ZIP codes, delivering to addresses in Union City, Canadian County.

City: Union City
County: Canadian County
State: Oklahoma
Prefix: 730xx

Where this code sits

73090 is part of the 730xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Union City.

Union City Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73090 delivers to without sharing its boundary.

ZIP codes nearest 73090

The ZIP codes whose reference points sit closest to 73090.
ZIP code	Distance	Delivers to
ZIP code 73059	6.0 mi	Minco, OK
ZIP code 73036	9.9 mi	El Reno, OK
ZIP code 73064	12 mi	Mustang, OK
ZIP code 73085	13 mi	Yukon, OK
ZIP code 73099	14 mi	Yukon, OK
ZIP code 73089	14 mi	Tuttle, OK
ZIP code 73169	16 mi	Oklahoma City, OK
ZIP code 73022	16 mi	Concho, 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 73090, plotted from its record coordinates.

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

Scope ZIP code 73090. 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.