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Zip Code 78957 — Smithville, TX

78957 is a ZIP Code associated with Smithville, TX, located within Bastrop. The postal region supports an estimated population of 10,543 residents across Data Pending housing units, with a population density of 23.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (30.012790, -97.174810)

Data MetricLocal Statistic
Postal / Zip Code78957
Primary CitySmithville
State / ProvinceTX
CountyBastrop
Total Population10,543
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density23.0 people/sq mi
TimezoneAmerica/Chicago

How 78957 Compares

MetricZIP 78957Bastrop CountyTX State Average
Population10,543108,11630,188,035
Median IncomeData PendingN/AN/A
Population Density23.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 78963West Point10.7 mi605N/A
Zip 78602Bastrop12.1 mi38,190N/A
Zip 78949Muldoon13.4 mi760N/A
Zip 78659Paige13.7 mi2,660N/A
Zip 78953Rosanky15.2 mi1,089N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →