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US ZIP Code Profile

ZIP Code 78749
Austin, Texas

ZIP code 78749 is in Austin, located in Travis County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 35,239. The estimated median adjusted gross income per tax return is $80,811, and about 17% of filers report $200,000 or more.

2020 Population
35,239
Census ZCTA
County
Travis
FIPS 48453
Median income (est.)
$80,811
IRS SOI 2022
Land Area
10.069 mi²
+ 0 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
Coordinates30.216175, -97.85583
Land / Water Area10.069 mi² land · 0 mi² water

02Income & Economics

Distribution of the 17,280 individual tax returns filed in 78749 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
16.3%
$25K–$50K
16.3%
$50K–$75K
14.9%
$75K–$100K
10.7%
$100K–$200K
24.6%
$200K+
17.2%
The $200,000+ bracket accounts for 51% of 78749's total adjusted gross income, from 17% of returns — a concentration that drives the gap between the median ($80,811) 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 78749's IRS income metrics, 2020–2022.

Median income (2021→2022)
$80,811
▲ 7.6%
Filers earning $200K+
17.2%
▲ 2.0 pt
Total filers
17,280
▲ 0.7%
GET /zipc/v2/zipcodes/78749/soi?year=… $70K 2020 $75K 2021 $81K 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 78749 ZCTA.

2000
28,497
 
2010
34,449
▲ +20.9%
2020
35,239
▲ +2.3%

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, Oak Hill

06Frequently Asked Questions

What county is ZIP code 78749 in?

ZIP code 78749 is in Travis County, Texas (county FIPS code 48453).

What city is ZIP code 78749?

The primary USPS city for 78749 is Austin, TX.

What metro area (MSA) is 78749 in?

78749 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78749?

The 2020 Census population of 78749 was 35,239 residents.

What is the median income in ZIP code 78749?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78749 is about $80,811, with around 17% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.