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US ZIP Code Profile

ZIP Code 78746
Austin, Texas

ZIP code 78746 is in Austin, located in Travis County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 29,106. The estimated median adjusted gross income per tax return is $161,163, and about 44% of filers report $200,000 or more.

2020 Population
29,106
Census ZCTA
County
Travis
FIPS 48453
Median income (est.)
$161,163
IRS SOI 2022
Land Area
22.545 mi²
+ 0.739 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
Coordinates30.29686, -97.80956
Land / Water Area22.545 mi² land · 0.739 mi² water

02Income & Economics

Distribution of the 13,170 individual tax returns filed in 78746 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
15.6%
$25K–$50K
9.1%
$50K–$75K
8.4%
$75K–$100K
6.9%
$100K–$200K
16.3%
$200K+
43.7%
The $200,000+ bracket accounts for 96% of 78746's total adjusted gross income, from 44% of returns — a concentration that drives the gap between the median ($161,163) 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 78746's IRS income metrics, 2020–2022.

Median income (2021→2022)
$161,163
▲ 1.6%
Filers earning $200K+
43.7%
▼ 0.1 pt
Total filers
13,170
▲ 1.6%
GET /zipc/v2/zipcodes/78746/soi?year=… $134K 2020 $159K 2021 $161K 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 78746 ZCTA.

2000
26,023
 
2010
26,928
▲ +3.5%
2020
29,106
▲ +8.1%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 78746. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 78746

Austin and its immediate neighbors, sorted by distance.

3 mi
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Distance from 78746 to any ZIP

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06USPS 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, Rollingwood, West Lake Hills, W Lake Hills, West Lake Hls

07Frequently Asked Questions

What county is ZIP code 78746 in?

ZIP code 78746 is in Travis County, Texas (county FIPS code 48453).

What city is ZIP code 78746?

The primary USPS city for 78746 is Austin, TX.

What metro area (MSA) is 78746 in?

78746 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78746?

The 2020 Census population of 78746 was 29,106 residents.

What is the median income in ZIP code 78746?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78746 is about $161,163, with around 44% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.