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US ZIP Code Profile

ZIP Code 78256
San Antonio, Texas

ZIP code 78256 is in San Antonio, located in Bexar County, Texas, within the San Antonio-New Braunfels metro area. Its 2020 Census population was 13,643. The estimated median adjusted gross income per tax return is $58,430, and about 16% of filers report $200,000 or more.

2020 Population
13,643
Census ZCTA
County
Bexar
FIPS 48029
Median income (est.)
$58,430
IRS SOI 2022
Land Area
8.692 mi²
+ 0.008 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
Coordinates29.62229, -98.62617
Land / Water Area8.692 mi² land · 0.008 mi² water

02Income & Economics

Distribution of the 6,480 individual tax returns filed in 78256 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
26.2%
$25K–$50K
19.3%
$50K–$75K
13.3%
$75K–$100K
8.5%
$100K–$200K
17.0%
$200K+
15.7%
The $200,000+ bracket accounts for 59% of 78256's total adjusted gross income, from 16% of returns — a concentration that drives the gap between the median ($58,430) 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 78256's IRS income metrics, 2020–2022.

Median income (2021→2022)
$58,430
▲ 4.3%
Filers earning $200K+
15.7%
▲ 0.7 pt
Total filers
6,480
▼ 0.5%
GET /zipc/v2/zipcodes/78256/soi?year=… $53K 2020 $56K 2021 $58K 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 78256 ZCTA.

2000
3,644
 
2010
6,855
▲ +88.1%
2020
13,643
▲ +99.0%

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 78256 in?

ZIP code 78256 is in Bexar County, Texas (county FIPS code 48029).

What city is ZIP code 78256?

The primary USPS city for 78256 is San Antonio, TX.

What metro area (MSA) is 78256 in?

78256 is part of the San Antonio-New Braunfels, TX Metro Area (MSA code 41700).

What is the population of ZIP code 78256?

The 2020 Census population of 78256 was 13,643 residents.

What is the median income in ZIP code 78256?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78256 is about $58,430, with around 16% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.