ZIP Code 75166

75166 is one of Texas's ZIP codes, delivering to addresses in Lavon, Collin County.

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

Where this code sits

75166 is part of the 751xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lavon.

Lavon Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 75166 delivers to without sharing its boundary.

ZIP codes nearest 75166

The ZIP codes whose reference points sit closest to 75166.
ZIP code	Distance	Delivers to
ZIP code 75173	4.3 mi	Nevada, TX
ZIP code 75087	4.5 mi	Rockwall, TX
ZIP code 75121	5.2 mi	Copeville, TX
ZIP code 75189	5.5 mi	Royse City, TX
ZIP code 75098	5.9 mi	Wylie, TX
ZIP code 75132	6.0 mi	Fate, TX
ZIP code 75164	8.2 mi	Josephine, TX
ZIP code 75089	8.7 mi	Rowlett, 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 75166, plotted from its record coordinates.

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

Scope ZIP code 75166. 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.