ZIP Code 78661

78661 is one of Texas's ZIP codes, delivering to addresses in Prairie Lea, Caldwell County.

City: Prairie Lea
County: Caldwell County
State: Texas
Prefix: 786xx

Where this code sits

78661 is part of the 786xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Prairie Lea.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78661 delivers to without sharing its boundary.

ZIP codes nearest 78661

The ZIP codes whose reference points sit closest to 78661.
ZIP code	Distance	Delivers to
ZIP code 78622	2.9 mi	Fentress, TX
ZIP code 78670	5.5 mi	Staples, TX
ZIP code 78638	6.2 mi	Kingsbury, TX
ZIP code 78648	6.4 mi	Luling, TX
ZIP code 78655	10 mi	Martindale, TX
ZIP code 78644	12 mi	Lockhart, TX
ZIP code 78656	13 mi	Maxwell, TX
ZIP code 78658	13 mi	Ottine, 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 78661, plotted from its record coordinates.

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

Scope ZIP code 78661. 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.