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US ZIP Code Profile

ZIP Code 78258
San Antonio, Texas

ZIP code 78258 is in San Antonio, located in Bexar County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 51,073. The estimated median adjusted gross income per tax return is $73,136, and about 18% of filers report $200,000 or more.

2020 Population
51,073
Census ZCTA
County
Bexar
FIPS 48029
Median income (est.)
$73,136
IRS SOI 2022
Land Area
15.876 mi²
+ 0.007 mi² water

01Location & Geography

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

Primary CitySan Antonio, 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
Coordinates29.634096, -98.49743
Land / Water Area15.876 mi² land · 0.007 mi² water

02Income & Economics

Distribution of the 23,320 individual tax returns filed in 78258 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.3%
$25K–$50K
17.0%
$50K–$75K
12.7%
$75K–$100K
8.8%
$100K–$200K
22.1%
$200K+
18.2%
The $200,000+ bracket accounts for 60% of 78258's total adjusted gross income, from 18% of returns — a concentration that drives the gap between the median ($73,136) 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 78258's IRS income metrics, 2020–2022.

Median income (2021→2022)
$73,136
▲ 3.7%
Filers earning $200K+
18.2%
▲ 1.0 pt
Total filers
23,320
▲ 0.9%
GET /zipc/v2/zipcodes/78258/soi?year=… $66K 2020 $71K 2021 $73K 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 78258 ZCTA.

2000
17,355
 
2010
40,586
▲ +133.9%
2020
51,073
▲ +25.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number487980
City AliasesSan Antonio

06Frequently Asked Questions

What county is ZIP code 78258 in?

ZIP code 78258 is in Bexar County, Texas (county FIPS code 48029).

What city is ZIP code 78258?

The primary USPS city for 78258 is San Antonio, TX.

What metro area (MSA) is 78258 in?

78258 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78258?

The 2020 Census population of 78258 was 51,073 residents.

What is the median income in ZIP code 78258?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78258 is about $73,136, with around 18% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.