ZIP Code 75121

75121 is one of Texas's ZIP codes, delivering to addresses in Copeville, Collin County.

City: Copeville
County: Collin County
State: Texas
Prefix: 751xx

Where this code sits

75121 is part of the 751xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Copeville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75121 delivers to without sharing its boundary.

ZIP codes nearest 75121

The ZIP codes whose reference points sit closest to 75121.
ZIP code	Distance	Delivers to
ZIP code 75173	2.6 mi	Nevada, TX
ZIP code 75166	5.2 mi	Lavon, TX
ZIP code 75442	6.1 mi	Farmersville, TX
ZIP code 75407	6.6 mi	Princeton, TX
ZIP code 75164	6.7 mi	Josephine, TX
ZIP code 75098	9.1 mi	Wylie, TX
ZIP code 75189	9.2 mi	Royse City, TX
ZIP code 75087	9.6 mi	Rockwall, 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 75121, plotted from its record coordinates.

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

Scope ZIP code 75121. 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.