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zipcodes.pro — STATE/TX/COUNTY/LIMESTONE

Limestone County, TX ZIP codes

There are 8 ZIP codes in Limestone County, TX, in 8 towns, from 76635 to 76687. The largest are 76667 (Mexia), 76642 (Groesbeck) and 76664 (Mart).

The county seat is Groesbeck.

ZIP codes
8
Towns
8
County seat
Groesbeck
County FIPS
48293
State
Texas
Population
22,283
Median household income
$60,573
Land area
905 sq mi
Area code
254

Limestone County ZIP codes by town

Groesbeck (county seat)
76642

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Limestone County ZIP codes

7663576642766537666476667766787668676687

The ZIP codes of Limestone County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Limestone County in numbers

About 22,283 people live in Limestone County, in 8,389 households, the 108th most populous of Texas's 254 counties. The median household income is $60,573 a year, 23% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $164,200 (42% below the Texas median), and median gross rent is $905 a month. The median age is 41.9; 18.5% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 29 minutes.

Population22,283Limestone22,283
Households8,389Limestone8,389
Median age41.9Limestone41.9Texas35.6US 38.9
Median household income$60,573Limestone$60,573Texas$78,476US $80,734
Median home value$164,200Limestone$164,200Texas$283,800US $332,700
Median gross rent$905Limestone$905Texas$1,403US $1,413
Bachelor's degree or higher18.5%Limestone18.5%Texas33.8%US 35.7%
Mean commute28.9 minLimestone28.9 minTexas26.7 minUS 26.4 min
Population density25 / sq miLimestone25 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Limestone County

Largest towns in Limestone County
TownZIP codesPopulation
Mexia 1 6,859
Groesbeck 1 3,914
Mart 1 1,704
Coolidge 1 754
Thornton 1 565
Kosse 1 430
Tehuacana 1 341
Prairie Hill 1 102

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Limestone County.

Not sure you are in Limestone County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Limestone County, with figures

ZIP codes in Limestone County
ZIP City Type Population Median income Median home
76635 Coolidge , TX Standard 1,392 $62,031 $153,300
76642 Groesbeck , TX Standard 6,363 $62,243 $189,000
76653 Kosse , TX Standard 1,067 $48,500 $150,200
76664 Mart , TX Standard 3,231 $74,618 $168,900
76667 Mexia , TX Standard 10,494 $52,541 $154,700
76678 Prairie Hill , TX Standard 102 $61,944 $215,600
76686 Tehuacana , TX Standard 341 $75,469 $169,100
76687 Thornton , TX Standard 1,830 $73,323 $254,500

Cite this page

zipcodes.pro. “Limestone County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tx/county/limestone

Underlying data is public domain or openly licensed — sources, vintages and licences.