ZIP Code 75661

75661 is one of Texas's ZIP codes, delivering to addresses in Karnack, Harrison County.

City: Karnack
County: Harrison County
State: Texas
Prefix: 756xx

Where this code sits

75661 is part of the 756xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Karnack.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75661 delivers to without sharing its boundary.

ZIP codes nearest 75661

The ZIP codes whose reference points sit closest to 75661.
ZIP code	Distance	Delivers to
ZIP code 75688	5.1 mi	Scottsville, TX
ZIP code 75692	8.0 mi	Waskom, TX
ZIP code 75694	8.6 mi	Woodlawn, TX
ZIP code 75659	9.4 mi	Jonesville, TX
ZIP code 75672	10 mi	Marshall, TX
ZIP code 75671	11 mi	Marshall, TX
ZIP code 75670	11 mi	Marshall, TX
ZIP code 71060	14 mi	Mooringsport, LA

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 75661, plotted from its record coordinates.

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

Scope ZIP code 75661. 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.