ZIP Code 73666

73666 is one of Oklahoma's ZIP codes, delivering to addresses in Sweetwater, Roger Mills County.

City: Sweetwater
County: Roger Mills County
State: Oklahoma
Prefix: 736xx

Where this code sits

73666 is part of the 736xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sweetwater.

Sweetwater Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73666 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 73666

The ZIP codes whose reference points sit closest to 73666.
ZIP code	Distance	Delivers to
ZIP code 73660	15 mi	Reydon, OK
ZIP code 73645	15 mi	Erick, OK
ZIP code 79003	16 mi	Allison, TX
ZIP code 73668	17 mi	Texola, OK
ZIP code 73628	17 mi	Cheyenne, OK
ZIP code 73662	18 mi	Sayre, OK
ZIP code 79011	18 mi	Briscoe, TX
ZIP code 79096	20 mi	Wheeler, TX

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 73666, plotted from its record coordinates.

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

Scope ZIP code 73666. 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.