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US ZIP Code Profile

ZIP Code 78750
Austin, Texas

ZIP code 78750 is in Austin, located in Travis County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 28,348. The estimated median adjusted gross income per tax return is $77,765, and about 23% of filers report $200,000 or more.

2020 Population
28,348
Census ZCTA
County
Travis
FIPS 48453
Median income (est.)
$77,765
IRS SOI 2022
Land Area
13.411 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
Coordinates30.418781, -97.80227
Land / Water Area13.411 mi² land · 0 mi² water

02Income & Economics

Distribution of the 13,230 individual tax returns filed in 78750 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.3%
$25K–$50K
16.8%
$50K–$75K
13.0%
$75K–$100K
8.5%
$100K–$200K
19.4%
$200K+
23.0%
The $200,000+ bracket accounts for 68% of 78750's total adjusted gross income, from 23% of returns — a concentration that drives the gap between the median ($77,765) 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 78750's IRS income metrics, 2020–2022.

Median income (2021→2022)
$77,765
▲ 4.8%
Filers earning $200K+
23.0%
▲ 1.0 pt
Total filers
13,230
▲ 0.2%
GET /zipc/v2/zipcodes/78750/soi?year=… $66K 2020 $74K 2021 $78K 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 78750 ZCTA.

2000
23,476
 
2010
26,814
▲ +14.2%
2020
28,348
▲ +5.7%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 78750. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 78750

Austin and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 78750 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

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

07Frequently Asked Questions

What county is ZIP code 78750 in?

ZIP code 78750 is in Travis County, Texas (county FIPS code 48453).

What city is ZIP code 78750?

The primary USPS city for 78750 is Austin, TX.

What metro area (MSA) is 78750 in?

78750 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78750?

The 2020 Census population of 78750 was 28,348 residents.

What is the median income in ZIP code 78750?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78750 is about $77,765, with around 23% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.