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US ZIP Code Profile

ZIP Code 78645
Leander, Texas

ZIP code 78645 is in Leander, located in Travis County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 14,051. The estimated median adjusted gross income per tax return is $79,310, and about 16% of filers report $200,000 or more.

2020 Population
14,051
Census ZCTA
County
Travis
FIPS 48453
Median income (est.)
$79,310
IRS SOI 2022
Land Area
31.68 mi²
+ 6.44 mi² water

01Location & Geography

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

Primary CityLeander, 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
Coordinates30.45004, -97.97198
Land / Water Area31.68 mi² land · 6.44 mi² water

02Income & Economics

Distribution of the 8,260 individual tax returns filed in 78645 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.8%
$25K–$50K
16.0%
$50K–$75K
13.4%
$75K–$100K
10.5%
$100K–$200K
24.8%
$200K+
16.5%
The $200,000+ bracket accounts for 58% of 78645's total adjusted gross income, from 16% of returns — a concentration that drives the gap between the median ($79,310) 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 78645's IRS income metrics, 2020–2022.

Median income (2021→2022)
$79,310
▲ 5.9%
Filers earning $200K+
16.5%
▲ 1.2 pt
Total filers
8,260
▲ 3.1%
GET /zipc/v2/zipcodes/78645/soi?year=… $66K 2020 $75K 2021 $79K 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 78645 ZCTA.

2000
7,635
 
2010
9,773
▲ +28.0%
2020
14,051
▲ +43.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number485040
City AliasesLeander, Jonestown, Point Venture, Lago Vista

06Frequently Asked Questions

What county is ZIP code 78645 in?

ZIP code 78645 is in Travis County, Texas (county FIPS code 48453).

What city is ZIP code 78645?

The primary USPS city for 78645 is Leander, TX.

What metro area (MSA) is 78645 in?

78645 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78645?

The 2020 Census population of 78645 was 14,051 residents.

What is the median income in ZIP code 78645?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78645 is about $79,310, 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.