County ZIP codes · Texas · FIPS 48193
Hamilton County, TX ZIP Codes
Hamilton County, Texas has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Hamilton County and 5 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $49,100 in 76531 (Hamilton) to $80,208 in 76525 (Evant) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Hamilton County?
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 $59,853 and $72,238.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Hamilton County
5 ZIP codes lie mainly in Hamilton County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 76531 | Hamilton | 4,703 | 12 | $49k | $126k | 96% |
| 76457 | Hico | 4,244 | 13 | $72k | $264k | 58% |
| 76525 | Evant | 1,289 | 8 | $80k | $170k | 51% |
| 76538 | Jonesboro | 882 | 6 | $64k | $123k | 69% |
| 76565 | Pottsville | no residents | 0 | – | – | 100% |
Partly in Hamilton County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 76637 | Cranfills Gap | 440 | 13 | $79k | $224k | 43% |
| 76566 | Purmela | 370 | 5 | $115k | $339k | 32% |
| 76436 | Carlton | 115 | 2 | $51k | – | 11% |
| 76844 | Goldthwaite | 3,284 | 9 | $68k | $224k | 3% |
| 76442 | Comanche | 7,372 | 17 | $60k | $150k | 1% |
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?
9 ZIP codes of Hamilton County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Hamilton | Elsewhere |
|---|---|---|
| 76442 | 1% | Comanche County91%; Mills County8% |
| 76531 | 96% | Comanche County2%; Mills County1% |
| 76457 | 58% | Erath County34%; Bosque County8% |
| 76844 | 3% | Mills County95%; Lampasas County1% |
| 76525 | 51% | Coryell County27%; Lampasas County21% |
| 76538 | 69% | Coryell County31% |
| 76637 | 43% | Bosque County57% |
| 76566 | 32% | Coryell County68% |
| 76436 | 11% | Comanche County86%; Erath County3% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Hamilton County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Hamilton County's ZIP codes use 4 prefixes: 764, 765, 766 and 768.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 764 | Fort Worth, TX (SCF 760) | 3 | 53 |
| 765 | Austin, TX (SCF 786) | 5 | 55 |
| 766 | Fort Worth, TX (SCF 760) | 1 | 58 |
| 768 | Abilene, TX (SCF 795) | 1 | 53 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.