Get API Key →
US ZIP Code Profile

ZIP Code 78732
Austin, Texas

ZIP code 78732 is in Austin, located in Travis County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 19,128. The estimated median adjusted gross income per tax return is $149,643, and about 41% of filers report $200,000 or more.

2020 Population
19,128
Census ZCTA
County
Travis
FIPS 48453
Median income (est.)
$149,643
IRS SOI 2022
Land Area
13.334 mi²
+ 3.025 mi² water

01Location & Geography

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

Primary CityAustin, TX
CountyTravis County (FIPS 48453)
StateTexas (FIPS 48)
Metro Area (MSA)Austin-Round Rock, TX Metro Area (12420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.37789, -97.89503
Land / Water Area13.334 mi² land · 3.025 mi² water

02Income & Economics

Distribution of the 7,550 individual tax returns filed in 78732 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.8%
$25K–$50K
8.7%
$50K–$75K
7.1%
$75K–$100K
6.1%
$100K–$200K
18.5%
$200K+
40.7%
The $200,000+ bracket accounts for 86% of 78732's total adjusted gross income, from 41% of returns — a concentration that drives the gap between the median ($149,643) 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 78732's IRS income metrics, 2020–2022.

Median income (2021→2022)
$149,643
▲ 2.1%
Filers earning $200K+
40.7%
▲ 1.2 pt
Total filers
7,550
▲ 2.0%
GET /zipc/v2/zipcodes/78732/soi?year=… $131K 2020 $147K 2021 $150K 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 78732 ZCTA.

2000
3,629
 
2010
14,060
▲ +287.4%
2020
19,128
▲ +36.0%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number480420
City AliasesAustin, Four Points, Marshall Ford

06Frequently Asked Questions

What county is ZIP code 78732 in?

ZIP code 78732 is in Travis County, Texas (county FIPS code 48453).

What city is ZIP code 78732?

The primary USPS city for 78732 is Austin, TX.

What metro area (MSA) is 78732 in?

78732 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78732?

The 2020 Census population of 78732 was 19,128 residents.

What is the median income in ZIP code 78732?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78732 is about $149,643, with around 41% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.