Residential delivery area · Texas
ZIP Code 78242: San Antonio, TX
ZIP code 78242 is in San Antonio, Texas, entirely in Bexar County (Census 2020 ZIP-county file). About 36,000 people live there (Census Bureau, ACS 2020-2024), the 26th most populous of San Antonio's 59 residential ZIP codes. Median household income is $50,644 (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
- 7.9 sq mi · 4,570 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 78242?
78242 centers on 29.350°, -98.607° and covers 7.9 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 78243, 78211, 78236, 78226, 78227, 78252, 78073.
The map draws ZIP code areas only. For the streets inside 78242, 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 78242 compare with the rest of San Antonio?
| Measure | 78242 | In San Antonio | In Bexar County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 36,168 | 26th of 59 | 30th of 78 | 284th of 1,990 |
| Median household income | $51k | 43rd of 50 | 58th of 65 | 1,038th of 1,172 |
| Median home value | $148k | 47th of 54 | 59th of 67 | 977th of 1,172 |
Its median household income is higher than in 15% of U.S. residential ZIP codes, and it is denser than 93% 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 78242?
The 2020 Census counted 33,294 people in 78242; the ACS, which samples households over 2020-2024, estimates 36,168. Between the 2010 and 2020 censuses its population grew 6.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 36,168
- 2020 Census count
- 33,294+6.0% since 2010 (31,395)
- Households
- 10,703
- Median age
- 29.7
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 78242?
Of the 36,168 people the ACS estimates in 78242, 33.7% are under 18 and 10.3% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (86.5%).
- Under 1833.7%
- 18 to 6456.0%
- 65 and older10.3%
- Hispanic or Latino86.5%
- White, not Hispanic7.9%
- Other or two or more3.4%
- Black, not Hispanic1.9%
- Asian, not Hispanic0.4%
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 78242 earn?
Median household income is $50,644 (ACS 2020-2024), the 58th highest of the 65 ranked ZIP codes in Bexar County. It is not measurably different from 2015-2019 ($52,585 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $50,644
- Income per person
- $19,020
- Below the poverty line
- 23.3%
- Unemployed (of the labor force)
- 11.7%
- Adults 25+ with a bachelor's degree
- 10.3%
- Adjusted gross income per tax return, 2022
- $36,25213,930 returns; wages 86% 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 78242?
FHFA's house price index for 78242, built from repeat sales and appraisals of the same homes, rose 138% from 2015 to 2025 and rose 37% from 2020 to 2025, and moved +9.9% in 2025.
- Median home value (owners' estimate)
- $148,200
- Median gross rent
- $1,270
- Homes owned by their occupants
- 53.6%
- Housing units
- 11,436
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 78242?
119 business establishments had a location in this ZIP code in 2023, 19 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade32
- Accommodation and food services26
- Construction17
- Real estate and rental and leasing6
- Administrative and support and waste management and remediation services6
- Other services (except public administration)6
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 78242?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78243 | San Antonio | 232 | – | 1.7 mi |
| 78211 | San Antonio | 30,857 | $55k | 2.3 mi |
| 78236 | Jbsa Lackland | 7,635 | $69k | 2.6 mi |
| 78226 | San Antonio | 6,554 | $33k | 3.2 mi |
| 78227 | San Antonio | 44,035 | $52k | 3.4 mi |
| 78252 | San Antonio | 21,790 | $86k | 5.1 mi |
| 78073 | Von Ormy | 10,088 | $70k | 7.4 mi |
| 78224 | San Antonio | 22,232 | $60k | 4.6 mi (near) |
| 78237 | San Antonio | 37,379 | $43k | 5.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.