HomeTexasLynn CountyO'Donnell
O'Donnell, Texas
Inside O'Donnell's city limits, shrink-swell clay limits houses without basements on 23% of mapped land, the highest of 4 cities in Lynn County. A shallow water table limits basements on under 1%.
That clay share is above Lynn County's 9%. FEMA's flood data list no flood losses since 2016 in ZIP code 79351 overlapping the city. Of its 346 homes, 83% were built before 1980; the median dates from 1956.
Data as of October 13, 2026 · sources · in Lynn County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
of homes built before 1980
Foundation repair in O'Donnell
Foundation repair in O'Donnell: shrink-swell clay limits slab homes on 23% of O'Donnell's mapped land.
About 300 of O'Donnell's 346 homes are detached houses.
| Who designs the repair | The ASCE Texas Section's repair guidelines say a Texas-licensed engineer should evaluate the foundation and design the repair (2022 guidelines) |
| Prices | Cost guide ranges compared |
Soil under O'Donnell city limits
| Expansive clay (limits slab homes) | 22.7% |
| High water table (limits basements) | 0.1% |
| Septic fields very limited | 2.6% |
| Clay swell (LEP, by area) | 3.4% |
| High-swell land (LEP 6%+) | 0.1% |
| Mapped soil | 548 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 3.4% by land area here, and under 1% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 23% of the mapped land.
Clay shrinks as it dries: 100% of Lynn County is in drought on the latest map, and 23% of O'Donnell's mapped land has shrink-swell clay.
Drought in Lynn County
100% of Lynn County is in drought (D1 or worse) on the October 13, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap O'Donnell. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 79351 | 100% | 0 | $0 |
Homes in O'Donnell
| Housing units | 346 |
| Median year built | 1956 |
| Built before 1980 | 83% |
| Built 2000 or later | 1% |
| Owner-occupied | 81% |
| Median value, owner-occupied | $67,600 |
| Single-family detached | 91% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Tahoka | 14 mi | 4% | under 1% |
| Lamesa | 18 mi | under 1% | under 1% |
| Los Ybanez | 18 mi | 0% | 0% |
| Wilson | 25 mi | 8% | 1% |
| New Home | 25 mi | 3% | 2% |
| Brownfield | 29 mi | 0% | under 1% |
| Post | 30 mi | 11% | 0% |
| Ackerly | 31 mi | 3% | 0% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status