Residential delivery area · Texas
ZIP Code 78204: San Antonio, TX
ZIP code 78204 is in San Antonio, Texas, entirely in Bexar County (Census 2020 ZIP-county file). About 12,000 people live there (Census Bureau, ACS 2020-2024), the 46th most populous of San Antonio's 59 residential ZIP codes. Median household income is $60,255 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- San Antonio · 59 residential ZIPs
- County
- Bexar County
- Census places
- San Antonio
- Neighborhood
- Arsenal GeoNames
- Metro area
- San Antonio-New Braunfels, TX
- House districts
- TX-35 (81%), TX-20 (19%) 119th Congress, by share of land
- State
- Texas
- Time zone
- Central
- Land area
- 2.7 sq mi · 4,420 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 78204?
78204 centers on 29.404°, -98.505° and covers 2.7 square miles of land plus 0.1 of water. It borders 5 ZIP codes: 78225, 78205, 78207, 78210, 78214.
The map draws ZIP code areas only. For the streets inside 78204, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 78204 compare with the rest of San Antonio?
| Measure | 78204 | In San Antonio | In Bexar County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 11,983 | 46th of 59 | 53rd of 78 | 761st of 1,990 |
| Median household income | $60k | not ranked | not ranked | not ranked |
| Median home value | $173k | 39th of 54 | 50th of 67 | 843rd of 1,172 |
78204's median household income is not ranked: its 90% margin of error (±$15,567) is more than a quarter of the figure ($60,255). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 93% of 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 78204?
The 2020 Census counted 11,298 people in 78204; the ACS, which samples households over 2020-2024, estimates 11,983. Between the 2010 and 2020 censuses its population grew 1.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 11,983±1,623 (90% margin)
- 2020 Census count
- 11,298+1.6% since 2010 (11,125)
- Households
- 5,103
- Median age
- 36.2
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 78204?
Of the 11,983 people the ACS estimates in 78204, 19.1% are under 18 and 14.0% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (80.1%), then White (not Hispanic) (15.5%).
- Under 1819.1%
- 18 to 6466.8%
- 65 and older14.0%
- Hispanic or Latino80.1%
- White, not Hispanic15.5%
- Black, not Hispanic2.2%
- Other or two or more2.0%
- Asian, not Hispanic0.2%
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 78204 earn?
Median household income is $60,255 (ACS 2020-2024). It is not measurably different from 2015-2019 ($49,118 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $60,255±$15,567
- Income per person
- $36,297
- Below the poverty line
- 17.5%
- Unemployed (of the labor force)
- 7.6%
- Adults 25+ with a bachelor's degree
- 24.7%
- Adjusted gross income per tax return, 2022
- $67,5425,520 returns; wages 69% 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 78204?
FHFA's house price index for 78204, built from repeat sales and appraisals of the same homes, rose 114% from 2015 to 2025 and rose 24% from 2020 to 2025, and moved +8.7% in 2025.
- Median home value (owners' estimate)
- $173,100
- Median gross rent
- $1,481
- Homes owned by their occupants
- 45.3%
- Housing units
- 6,402
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 78204?
262 business establishments had a location in this ZIP code in 2023, 31 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services56
- Accommodation and food services47
- Other services (except public administration)29
- Health care and social assistance24
- Retail trade21
- Wholesale trade13
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 78204?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78225 | San Antonio | 13,104 | $47k | 1.7 mi |
| 78205 | San Antonio | 1,538 | $39k | 1.8 mi |
| 78207 | San Antonio | 55,474 | $33k | 1.8 mi |
| 78210 | San Antonio | 34,940 | $55k | 2.5 mi |
| 78214 | San Antonio | 22,118 | $45k | 4.1 mi |
| 78203 | San Antonio | 5,200 | $36k | 2.8 mi (near) |
| 78215 | San Antonio | 3,506 | $84k | 2.9 mi (near) |
| 78202 | San Antonio | 10,224 | $48k | 3.1 mi (near) |
| 78208 | San Antonio | 3,861 | $27k | 3.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.