ZIP Code 75645

75645 is one of Texas's ZIP codes, delivering to addresses in Gilmer, Upshur County.

City: Gilmer
County: Upshur County
State: Texas
Prefix: 756xx

Where this code sits

75645 is part of the 756xx range, the group of codes handled by one mail processing centre. Gilmer is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Gilmer page.

Gilmer Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75645 delivers to without sharing its boundary.

ZIP codes nearest 75645

The ZIP codes whose reference points sit closest to 75645.
ZIP code	Distance	Delivers to
ZIP code 75608	2.4 mi	Longview, TX
ZIP code 75693	4.6 mi	White Oak, TX
ZIP code 75605	5.4 mi	Longview, TX
ZIP code 75660	5.8 mi	Judson, TX
ZIP code 75647	5.9 mi	Gladewater, TX
ZIP code 75604	6.2 mi	Longview, TX
ZIP code 75607	7.5 mi	Longview, TX
ZIP code 75615	7.5 mi	Longview, 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 75645, plotted from its record coordinates.

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

Scope ZIP code 75645. 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.