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County ZIP codes · Texas · FIPS 48293

Limestone County, TX ZIP Codes

Limestone County, Texas has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 8 of the residential ones lie mainly in Limestone County and 6 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $52,541 in 76667 (Mexia) to $74,618 in 76664 (Mart) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Limestone County?

75838 · Donie: $28k75846 · Jewett: $64k76624 · Axtell: $80k76635 · Coolidge: $62k76642 · Groesbeck: $62k76648 · Hubbard: $55k76653 · Kosse: $49k76664 · Mart: $75k76667 · Mexia: $53k76673 · Mount Calm: $64k76678 · Prairie Hill: $62k76686 · Tehuacana: $76k76687 · Thornton: $73k76693 · Wortham: $56k7664275846766877665376667766647663576648766937667376624758387667875838 · Donie: $28k75846 · Jewett: $64k76624 · Axtell: $80k76635 · Coolidge: $62k76642 · Groesbeck: $62k76648 · Hubbard: $55k76653 · Kosse: $49k76664 · Mart: $75k76667 · Mexia: $53k76673 · Mount Calm: $64k76678 · Prairie Hill: $62k76686 · Tehuacana: $76k76687 · Thornton: $73k76693 · Wortham: $56k7664275846766877665376667766647663576648766937667376624758387667875838 · Donie: $28k75846 · Jewett: $64k76624 · Axtell: $80k76635 · Coolidge: $62k76642 · Groesbeck: $62k76648 · Hubbard: $55k76653 · Kosse: $49k76664 · Mart: $75k76667 · Mexia: $53k76673 · Mount Calm: $64k76678 · Prairie Hill: $62k76686 · Tehuacana: $76k76687 · Thornton: $73k76693 · Wortham: $56k76642758467668776653766677666476635766487669376673766247583876678
The residential ZIP codes of Limestone County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $54,669 and $63,750.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 14 residential ZIP codes in Limestone County

8 ZIP codes lie mainly in Limestone County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Limestone County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
76667 Mexia 10,494 69 $53k $155k 82%
76642 Groesbeck 6,363 26 $62k $189k 100%
76664 Mart 3,231 24 $75k $169k 65%
76687 Thornton 1,830 14 $73k $255k 83%
76635 Coolidge 1,392 12 $62k $153k 100%
76653 Kosse 1,067 7 $49k $150k 58%
76686 Tehuacana 341 190 $76k $169k 100%
76678 Prairie Hill 102 4 $62k $216k 100%

Partly in Limestone County

Residential ZIP codes mainly in another county that reach at least 1% into Limestone County, by their share here
In this county
76673 Mount Calm 1,196 13 $64k $115k 38%
75846 Jewett 2,741 18 $64k $204k 19%
76648 Hubbard 2,777 27 $55k $132k 14%
76624 Axtell 2,660 42 $80k $188k 12%
75838 Donie 209 4 $28k – 11%
76693 Wortham 2,153 18 $56k $176k 10%

Download the 14 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

10 ZIP codes of Limestone County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Limestone County and in the neighboring counties
ZIPIn LimestoneElsewhere
7666782%Freestone County 18%
7666465%McLennan County 28%; Falls County 7%
7664814%Hill County 75%; Navarro County 10%
7584619%Leon County 81%
7662412%McLennan County 88%
7669310%Freestone County 52%; Navarro County 37%
7668783%Robertson County 16%
7667338%Hill County 61%
7665358%Falls County 33%; Robertson County 9%
7583811%Freestone County 89%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Limestone County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Limestone County's ZIP codes use 2 prefixes: 758 and 766.

Three-digit prefixes of Limestone County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Limestone County's
PrefixSectional centerHereAll codes
758 Dallas, TX (SCF 752) 2 33
766 Fort Worth, TX (SCF 760) 12 58

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.