County ZIP codes · Texas · FIPS 48317
Martin County, TX ZIP Codes
Martin County, Texas has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 5 of the residential ones lie mainly in Martin County and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $68,785 in 79720 (Big Spring) to $105,310 in 79705 (Midland) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Martin County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
They carry 8 postal town names: Midland, Big Spring, Lamesa, Stanton, Ackerly, Lenorah, Knott, Tarzan.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 8 residential ZIP codes in Martin County
5 ZIP codes lie mainly in Martin County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 79705 | Midland | 46,653 | 587 | $105k | $352k | 51% |
| 79782 | Stanton | 3,867 | 10 | $103k | $171k | 84% |
| 79713 | Ackerly | 840 | 4 | $65k | $149k | 46% |
| 79749 | Lenorah | 477 | 8 | $34k | $182k | 100% |
| 79783 | Tarzan | 113 | 1 | $129k | – | 100% |
Partly in Martin County
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?
6 ZIP codes of Martin County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Martin | Elsewhere |
|---|---|---|
| 79705 | 51% | Midland County49% |
| 79720 | 4% | Howard County55%; Glasscock County35%; Borden County6% |
| 79331 | 15% | Dawson County78%; Borden County4%; Gaines County3% |
| 79782 | 84% | Glasscock County9%; Midland County7% |
| 79713 | 46% | Dawson County22%; Howard County22%; Borden County10% |
| 79748 | 38% | Howard County62% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Martin County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Martin County's ZIP codes use 2 prefixes: 793 and 797.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.