County ZIP codes · Texas · FIPS 48115
Dawson County, TX ZIP Codes
Dawson County, Texas has 4 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Dawson County and 1 mainly in a neighboring county; 3 cross the county line.
- ACS2020-24
- Census2020
Where are the ZIP codes of Dawson County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 4 residential ZIP codes in Dawson County
3 ZIP codes lie mainly in Dawson County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 79331 | Lamesa | 11,711 | 15 | $54k | $102k | 78% |
| 79351 | Odonnell | 1,044 | 4 | $67k | $99k | 37% |
| 79377 | Welch | 230 | 8 | $44k | $144k | 100% |
Partly in Dawson County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 79713 | Ackerly | 840 | 4 | $65k | $149k | 22% |
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?
3 ZIP codes of Dawson County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Dawson | Elsewhere |
|---|---|---|
| 79331 | 78% | Martin County15%; Borden County4%; Gaines County3% |
| 79351 | 37% | Lynn County32%; Borden County31% |
| 79713 | 22% | Martin County46%; Howard County22%; Borden County10% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Dawson County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Dawson 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.