Residential delivery area · Texas
ZIP Code 78237: San Antonio, TX
ZIP code 78237 is in San Antonio, Texas, entirely in Bexar County (Census 2020 ZIP-county file). About 37,000 people live there (Census Bureau, ACS 2020-2024), the 24th most populous of San Antonio's 59 residential ZIP codes. Median household income is $42,772 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- San Antonio · 59 residential ZIPs
- County
- Bexar County
- Census places
- San Antonio
- Metro area
- San Antonio-New Braunfels, TX
- House district
- TX-20 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 7.1 sq mi · 5,246 people per sq mi
- PO Box ZIPs
- 24 more ZIP codes use the name San Antonio for PO boxes or single organizations
Where is ZIP code 78237?
78237 centers on 29.421°, -98.566° and covers 7.1 square miles of land plus 0.0 of water. It borders 4 ZIP codes: 78207, 78226, 78228, 78227.
The map draws ZIP code areas only. For the streets inside 78237, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 78237 compare with the rest of San Antonio?
| Measure | 78237 | In San Antonio | In Bexar County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 37,379 | 24th of 59 | 28th of 78 | 268th of 1,990 |
| Median household income | $43k | 48th of 50 | 63rd of 65 | 1,121st of 1,172 |
| Median home value | $116k | 52nd of 54 | 65th of 67 | 1,054th of 1,172 |
Its median household income is higher than in 7% of U.S. residential ZIP codes, and it is denser than 94% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 78237?
The 2020 Census counted 36,019 people in 78237; the ACS, which samples households over 2020-2024, estimates 37,379. Between the 2010 and 2020 censuses its population fell 2.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 37,379
- 2020 Census count
- 36,019−2.5% since 2010 (36,929)
- Households
- 11,821
- Median age
- 34.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 78237?
Of the 37,379 people the ACS estimates in 78237, 27.6% are under 18 and 12.2% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (95.0%).
- Under 1827.6%
- 18 to 6460.2%
- 65 and older12.2%
- Hispanic or Latino95.0%
- White, not Hispanic2.7%
- Black, not Hispanic1.8%
- Other or two or more0.5%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 78237 earn?
Median household income is $42,772 (ACS 2020-2024), the 63rd highest of the 65 ranked ZIP codes in Bexar County. It rose from $38,526 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $42,772
- Income per person
- $20,555
- Below the poverty line
- 27.6%
- Unemployed (of the labor force)
- 10.7%
- Adults 25+ with a bachelor's degree
- 6.2%
- Adjusted gross income per tax return, 2022
- $32,59815,030 returns; wages 84% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 78237?
FHFA's house price index for 78237, built from repeat sales and appraisals of the same homes, rose 91% from 2015 to 2025 and rose 27% from 2020 to 2025, and moved +7.8% in 2025.
- Median home value (owners' estimate)
- $115,500
- Median gross rent
- $1,064
- Homes owned by their occupants
- 61.3%
- Housing units
- 13,144
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 78237?
350 business establishments had a location in this ZIP code in 2023, 29 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade71
- Accommodation and food services63
- Health care and social assistance41
- Other services (except public administration)38
- Construction35
- Finance and insurance29
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 78237?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78207 | San Antonio | 55,474 | $33k | 2.4 mi |
| 78226 | San Antonio | 6,554 | $33k | 2.6 mi |
| 78228 | San Antonio | 56,165 | $53k | 2.8 mi |
| 78227 | San Antonio | 44,035 | $52k | 4.9 mi |
| 78225 | San Antonio | 13,104 | $47k | 3.3 mi (near) |
| 78243 | San Antonio | 232 | – | 3.8 mi (near) |
| 78204 | San Antonio | 11,983 | $60k | 3.9 mi (near) |
| 78201 | San Antonio | 41,981 | $47k | 4.0 mi (near) |
| 78236 | Jbsa Lackland | 7,635 | $69k | 4.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.