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US ZIP Code Profile

ZIP Code 78234
Jbsa Ft Sam Houston, Texas

ZIP code 78234 is in Jbsa Ft Sam Houston, located in Bexar County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 7,464. The estimated median adjusted gross income per tax return is $39,623, and about 3% of filers report $200,000 or more.

2020 Population
7,464
Census ZCTA
County
Bexar
FIPS 48029
Median income (est.)
$39,623
IRS SOI 2022
Land Area
4.548 mi²
+ 0.003 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityJbsa Ft Sam Houston, TX
CountyBexar County (FIPS 48029)
StateTexas (FIPS 48)
Metro Area (MSA)San Antonio-New Braunfels, TX Metro Area (41700)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.460896, -98.43834
Land / Water Area4.548 mi² land · 0.003 mi² water

02Income & Economics

Distribution of the 1,860 individual tax returns filed in 78234 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
33.3%
$25K–$50K
28.5%
$50K–$75K
14.5%
$75K–$100K
8.1%
$100K–$200K
12.9%
$200K+
2.7%
The $200,000+ bracket accounts for 14% of 78234's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($39,623) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 78234's IRS income metrics, 2020–2022.

Median income (2021→2022)
$39,623
▼ 2.6%
Filers earning $200K+
2.7%
▼ 0.7 pt
Total filers
1,860
▲ 6.3%
GET /zipc/v2/zipcodes/78234/soi?year=… $36K 2020 $41K 2021 $40K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 78234 ZCTA.

2000
5,390
 
2010
7,126
▲ +32.2%
2020
7,464
▲ +4.7%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 78234. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 78234

Jbsa Ft Sam Houston and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 78234 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeNon-Postal Community Name, former postal facility or place name
Carrier Route SortD
USPS Finance Number487980
City AliasesFort Sam Houston, San Antonio, Ft Sm Houston, Jbsa Ft Sam Houston, Jbsa Fsh

07Frequently Asked Questions

What county is ZIP code 78234 in?

ZIP code 78234 is in Bexar County, Texas (county FIPS code 48029).

What city is ZIP code 78234?

The primary USPS city for 78234 is Jbsa Ft Sam Houston, TX.

What metro area (MSA) is 78234 in?

78234 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78234?

The 2020 Census population of 78234 was 7,464 residents.

What is the median income in ZIP code 78234?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78234 is about $39,623, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.