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US ZIP Code Profile

ZIP Code 77573
League City, Texas

ZIP code 77573 is in League City, located in Galveston County, Texas, within the Houston-The Woodlands-Sugar Land metro area. Its 2020 Census population was 95,256. The estimated median adjusted gross income per tax return is $75,948, and about 14% of filers report $200,000 or more.

2020 Population
95,256
Census ZCTA
County
Galveston
FIPS 48167
Median income (est.)
$75,948
IRS SOI 2022
Land Area
30.109 mi²
+ 1.377 mi² water

01Location & Geography

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

Primary CityLeague City, TX
CountyGalveston County (FIPS 48167)
StateTexas (FIPS 48)
Metro Area (MSA)Houston-The Woodlands-Sugar Land, TX Metro Area (26420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates29.503784, -95.0873
Land / Water Area30.109 mi² land · 1.377 mi² water

02Income & Economics

Distribution of the 42,700 individual tax returns filed in 77573 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.4%
$25K–$50K
15.5%
$50K–$75K
12.7%
$75K–$100K
9.9%
$100K–$200K
26.5%
$200K+
14.0%
The $200,000+ bracket accounts for 45% of 77573's total adjusted gross income, from 14% of returns — a concentration that drives the gap between the median ($75,948) 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 77573's IRS income metrics, 2020–2022.

Median income (2021→2022)
$75,948
▲ 4.4%
Filers earning $200K+
14.0%
▲ 1.4 pt
Total filers
42,700
▲ 2.0%
GET /zipc/v2/zipcodes/77573/soi?year=… $69K 2020 $73K 2021 $76K 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 77573 ZCTA.

2000
41,727
 
2010
71,580
▲ +71.5%
2020
95,256
▲ +33.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number485030
City AliasesLeague City

06Frequently Asked Questions

What county is ZIP code 77573 in?

ZIP code 77573 is in Galveston County, Texas (county FIPS code 48167).

What city is ZIP code 77573?

The primary USPS city for 77573 is League City, TX.

What metro area (MSA) is 77573 in?

77573 is part of the Houston-The Woodlands-Sugar Land, TX Metro Area (MSA code 26420).

What is the population of ZIP code 77573?

The 2020 Census population of 77573 was 95,256 residents.

What is the median income in ZIP code 77573?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77573 is about $75,948, with around 14% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.