ZIP Code 79539

79539 is one of Texas's ZIP codes, delivering to addresses in O Brien, Haskell County.

City: O Brien
County: Haskell County
State: Texas
Prefix: 795xx

Where this code sits

79539 is part of the 795xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to O Brien.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 79539 delivers to without sharing its boundary.

940 Area code 940

ZIP codes nearest 79539

The ZIP codes whose reference points sit closest to 79539.
ZIP code	Distance	Delivers to
ZIP code 79529	3.6 mi	Knox City, TX
ZIP code 79544	4.5 mi	Rochester, TX
ZIP code 76388	11 mi	Weinert, TX
ZIP code 79547	13 mi	Rule, TX
ZIP code 76371	14 mi	Munday, TX
ZIP code 79505	15 mi	Benjamin, TX
ZIP code 79521	16 mi	Haskell, TX
ZIP code 76363	20 mi	Goree, 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 79539, plotted from its record coordinates.

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

Scope ZIP code 79539. 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.