Zip Code 78257 — San Antonio, TX

ZIP Code 78257 is associated with San Antonio, TX, in Bexar County. The listed population estimate is 10,992; estimated density is 148.9 people per square mile. Among records with population estimates, it ranks #52 of 69 in Bexar County and #787 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (29.643730, -98.577130)

Data MetricLocal Statistic
Postal / Zip Code78257
Primary CitySan Antonio
State / ProvinceTX
CountyBexar
Total Population10,992
Population Density148.9 people/sq mi
TimezoneAmerica/Chicago

How 78257 Compares

MetricZIP 78257Bexar County recordsTX records
Population estimate10,9922,079,418 (sum)30,188,035 (sum)
Population Density148.9 /sq mi----
County population rank#52 of 69----
State population rank#787 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 78256San Antonio3.3 mi13,453
ZIP 78231San Antonio4.8 mi9,744
ZIP 78248San Antonio4.8 mi14,488
ZIP 78258San Antonio5.1 mi52,448
ZIP 78255San Antonio5.2 mi17,379

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 →