ZIP Code 75831

75831 is one of Texas's ZIP codes, delivering to addresses in Buffalo, Leon County.

City: Buffalo
County: Leon County
State: Texas
Prefix: 758xx

Where this code sits

75831 is part of the 758xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Buffalo.

Buffalo Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75831 delivers to without sharing its boundary.

ZIP codes nearest 75831

The ZIP codes whose reference points sit closest to 75831.
ZIP code	Distance	Delivers to
ZIP code 77850	6.8 mi	Concord, TX
ZIP code 75833	11 mi	Centerville, TX
ZIP code 75846	12 mi	Jewett, TX
ZIP code 75855	15 mi	Oakwood, TX
ZIP code 75838	16 mi	Donie, TX
ZIP code 75850	19 mi	Leona, TX
ZIP code 77855	19 mi	Flynn, TX
ZIP code 77865	19 mi	Marquez, 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 75831, plotted from its record coordinates.

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

Scope ZIP code 75831. 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.