What city is ZIP code 78233?

ZIP code 78233 is in San Antonio, TX (Bexar County).

What county is ZIP code 78233 in?

ZIP code 78233 is mostly in Bexar County, Texas.

How many people live in ZIP code 78233?

About 48,911 people live in the 78233 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 78233

San Antonio, TX, Bexar County

Population

48,911

Land area

13.7sq mi

People per sq mi

3,578

City

San Antonio

ZIP 78233 and nearby ZIP codes

Full map

ZIP 78233 at a glance

ZIP 78233 (San Antonio) is about 31 times as dense as Texas as a whole.
The median household income is $76,421, close to the Texas median.
A typical owner-occupied home is valued at $220,800 (22% below Texas) and median rent is $1,514 a month.

Local data for ZIP 78233

Counts from official public data

Housing and community stats

ZIP 78233, American Community Survey 2020-2024

Full profile

Median household income

$76,421

Poverty rate

10.4%

Median home value

$220,800

Prices -4.5% in a year

Median rent

$1,514/mo

Homeownership

60.4%

Bachelor's or higher

27.5%

Median age

36.0

Average commute

23.3 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

864

ZIP Business Patterns 2023

Employees

16,432

$923M annual payroll

PPP loans

$69.8M

1,155 loans

Campaign donations

$108K

14% D, 47% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 78233, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively High

Top: hail

Storm events since 1996

1,353

Countywide, mostly hail

Flood insurance policies

4,411

0.8% of homes, county

July high / Jan low

96° / 41°F

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 78233, CDC PLACES estimates

All 40 measures

Obesity

33.8%

U.S. 33.3% +0.5 pts

Diabetes

13.6%

U.S. 12.1% +1.5 pts

Smoking

12.5%

U.S. 12.8% about the same

Uninsured (18-64)

19.1%

U.S. 11.1% +8.0 pts

Frequently asked questions

What city is ZIP code 78233?: ZIP code 78233 is in San Antonio, TX (Bexar County).
What county is ZIP code 78233 in?: ZIP code 78233 is mostly in Bexar County, Texas.
How many people live in ZIP code 78233?: About 48,911 people live in the 78233 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.