ZIP Code 75566

75566 is one of Texas's ZIP codes, delivering to addresses in Marietta, Cass County.

City: Marietta
County: Cass County
State: Texas
Prefix: 755xx

Where this code sits

75566 is part of the 755xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Marietta.

Marietta Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75566 delivers to without sharing its boundary.

ZIP codes nearest 75566

The ZIP codes whose reference points sit closest to 75566.
ZIP code	Distance	Delivers to
ZIP code 75568	8.6 mi	Naples, TX
ZIP code 75574	11 mi	Simms, TX
ZIP code 75560	11 mi	Douglassville, TX
ZIP code 75656	12 mi	Hughes Springs, TX
ZIP code 75571	13 mi	Omaha, TX
ZIP code 75638	15 mi	Daingerfield, TX
ZIP code 75563	16 mi	Linden, TX
ZIP code 75567	17 mi	Maud, 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 75566, plotted from its record coordinates.

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

Scope ZIP code 75566. 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.