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US ZIP Code Profile

ZIP Code 76577
Thorndale, Texas

ZIP code 76577 is in Thorndale, located in Milam County, Texas. Its 2020 Census population was 3,262. The estimated median adjusted gross income per tax return is $49,359, and about 6% of filers report $200,000 or more.

2020 Population
3,262
Census ZCTA
County
Milam
FIPS 48331
Median income (est.)
$49,359
IRS SOI 2022
Land Area
151.125 mi²
+ 1.314 mi² water

01Location & Geography

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

Primary CityThorndale, TX
CountyMilam County (FIPS 48331)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.627232, -97.17025
Land / Water Area151.125 mi² land · 1.314 mi² water

02Income & Economics

Distribution of the 1,660 individual tax returns filed in 76577 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
27.1%
$25K–$50K
23.5%
$50K–$75K
14.5%
$75K–$100K
10.2%
$100K–$200K
18.7%
$200K+
6.0%
The $200,000+ bracket accounts for 35% of 76577's total adjusted gross income, from 6% of returns — a concentration that drives the gap between the median ($49,359) 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 76577's IRS income metrics, 2020–2022.

Median income (2021→2022)
$49,359
▲ 3.6%
Filers earning $200K+
6.0%
▲ 0.2 pt
Total filers
1,660
▲ 7.1%
GET /zipc/v2/zipcodes/76577/soi?year=… $45K 2020 $48K 2021 $49K 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 76577 ZCTA.

2000
2,558
 
2010
3,046
▲ +19.1%
2020
3,262
▲ +7.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number488975
City AliasesDetmold, Gano, Lilac, Nile, San Gabriel, Thorndale

06Frequently Asked Questions

What county is ZIP code 76577 in?

ZIP code 76577 is in Milam County, Texas (county FIPS code 48331).

What city is ZIP code 76577?

The primary USPS city for 76577 is Thorndale, TX.

What is the population of ZIP code 76577?

The 2020 Census population of 76577 was 3,262 residents.

What is the median income in ZIP code 76577?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 76577 is about $49,359, with around 6% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.