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ZIP code

78231

San Antonio, TX

STANDARD

78231 covers San Antonio in Bexar County, with 9,966 people in the ACS 2023 estimate.

Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology

ACS 2023 population

9,966

Median household income

$103,538

Median home value

$382,000

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 78231. Methodology

ZIP code map of 78231

Census ZCTA boundary for ZIP 78231 in San Antonio, Texas
Census ZCTA boundary for ZIP 78231 in San Antonio, Texas. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 78231

Type

STANDARD

City

San Antonio

County

Bexar County

Timezone

America/Chicago

Area codes

210, 726

Land area

4.1 sq mi

Water area

0.00 sq mi

Households

4,189

Median gross rent

$1,289

Acceptable cities: Shavano Park

More enterprise fields

Timezone
America/Chicago
Area Codes
210, 726
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 78231. Not ACS. Methodology

People in 78231

Race

  • White5,826
  • Black or African American293
  • American Indian or Alaska Native59
  • Asian422
  • Native Hawaiian and Pacific Islander7
  • Other race462
  • Two or more races1,924

Hispanic or Latino (any race): 3,152

Age

  • Under 10883
  • 10 to 191,041
  • 20 to 291,022
  • 30 to 391,103
  • 40 to 491,097
  • 50 to 591,216
  • 60 to 691,275
  • 70 to 79918
  • 80 and older438

Income and housing in 78231

Poverty rate

5.7%

Median earnings

$46,806

Median household income

$103,538

Median home value

$382,000

Median gross rent

$1,289

Education

  • High school graduate99.4%
  • Bachelor's degree63.8%
  • Graduate degree30.1%

Places covering 78231

Cities and places — Population overlap

Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Counties — Population overlap

Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

Population history for 78231

IRS populationACS population
10,9435,471020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
20058,263
20067,846
20078,025
20087,825
20097,892
20108,082
20118,2208,138
20127,8438,150
20138,1908,360
20148,1328,490
20158,0988,620
20168,2588,470
20178,4538,510
20188,5368,320
20199,0018,340
202010,1328,240
202110,1098,210
20229,9728,150
20239,966

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 78231

12 nearest ZIP centroids (any distance)

  1. 78248San Antonio1.2 miPop 14,127 · Income $130,605
  2. 78230San Antonio2.5 miPop 42,070 · Income $71,564
  3. 78232San Antonio4.0 miPop 36,277 · Income $84,633
  4. 78216San Antonio4.2 miPop 42,044 · Income $55,488
  5. 78249San Antonio4.4 miPop 61,772 · Income $80,851
  6. 78213San Antonio4.6 miPop 41,603 · Income $53,342
  7. 78258San Antonio4.9 miPop 51,672 · Income $116,133
  8. 78257San Antonio5.1 miPop 10,390 · Income $74,540
  9. 78240San Antonio5.4 miPop 57,014 · Income $62,203
  10. 78229San Antonio5.6 miPop 35,195 · Income $46,718
  11. 78256San Antonio5.8 miPop 12,014 · Income $72,797
  12. 78201San Antonio7.8 miPop 43,426 · Income $46,129

ZIP centroids within 2 miles

ZIP centroids within 2 miles of 78231, measured by Census internal point.
ZIPCityStateDistance (miles)ACS populationMedian income
78248San AntonioTX1.2 mi14,127$130,605

ZIPs within 2 miles of this place

Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.

78231 San Antonio, TX

Looking up ZIP codes within 2 miles of 78231 San Antonio, TX, measured by centroid distance.

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ZIP code 78231 FAQ

What city is ZIP code 78231 in?
78231 is in San Antonio, TX.
What county is 78231 in?
78231 is in Bexar County.
What is the median household income in 78231?
The median household income in 78231 is $103,538.
Which ZIP codes are near 78231?
Use the radius tool on this page to list ZIP codes within a chosen distance of 78231.