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US ZIP Code Profile

ZIP Code 76642
Groesbeck, Texas

ZIP code 76642 is in Groesbeck, located in Limestone County, Texas. Its 2020 Census population was 6,641. The estimated median adjusted gross income per tax return is $43,576, and about 3% of filers report $200,000 or more.

2020 Population
6,641
Census ZCTA
County
Limestone
FIPS 48293
Median income (est.)
$43,576
IRS SOI 2022
Land Area
255.481 mi²
+ 13.96 mi² water

01Location & Geography

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

Primary CityGroesbeck, TX
CountyLimestone County (FIPS 48293)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates31.503056, -96.52001
Land / Water Area255.481 mi² land · 13.96 mi² water

02Income & Economics

Distribution of the 2,630 individual tax returns filed in 76642 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
29.7%
$25K–$50K
27.4%
$50K–$75K
15.2%
$75K–$100K
8.8%
$100K–$200K
15.6%
$200K+
3.4%
The $200,000+ bracket accounts for 22% of 76642's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($43,576) 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 76642's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,576
▲ 6.9%
Filers earning $200K+
3.4%
▲ 0.4 pt
Total filers
2,630
▼ 1.5%
GET /zipc/v2/zipcodes/76642/soi?year=… $38K 2020 $41K 2021 $44K 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 76642 ZCTA.

2000
6,289
 
2010
7,057
▲ +12.2%
2020
6,641
▼ -5.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number483760
City AliasesBox Church, Groesbeck, Thelma, Lake Limestone, Lk Limestone

06Frequently Asked Questions

What county is ZIP code 76642 in?

ZIP code 76642 is in Limestone County, Texas (county FIPS code 48293).

What city is ZIP code 76642?

The primary USPS city for 76642 is Groesbeck, TX.

What is the population of ZIP code 76642?

The 2020 Census population of 76642 was 6,641 residents.

What is the median income in ZIP code 76642?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 76642 is about $43,576, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.