ZIP Code 78957

78957 is one of Texas's ZIP codes, delivering to addresses in Smithville, Bastrop County.

City: Smithville
County: Bastrop County
State: Texas
Prefix: 789xx

Where this code sits

78957 is part of the 789xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Smithville.

Smithville Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78957 delivers to without sharing its boundary.

ZIP codes nearest 78957

The ZIP codes whose reference points sit closest to 78957.
ZIP code	Distance	Delivers to
ZIP code 78963	8.2 mi	West Point, TX
ZIP code 78953	12 mi	Rosanky, TX
ZIP code 78659	12 mi	Paige, TX
ZIP code 78602	12 mi	Bastrop, TX
ZIP code 78952	12 mi	Plum, TX
ZIP code 78960	15 mi	Warda, TX
ZIP code 78949	15 mi	Muldoon, TX
ZIP code 78662	16 mi	Red Rock, 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 78957, plotted from its record coordinates.

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

Scope ZIP code 78957. 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.