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Clarendon, Texas
Inside Clarendon's city limits, shrink-swell clay limits houses without basements on 5% of mapped land, the highest of 3 cities in Donley County. A shallow water table limits basements on 3%, the highest of 3 cities in Donley County.
That clay share is close to Donley County's 4%. FEMA's flood data list no flood losses since 2016 in ZIP code 79226 overlapping the city. Of its 820 homes, 71% were built before 1980; the median dates from 1964.
Data as of October 13, 2026 · sources · in Donley 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 Clarendon
Foundation repair in Clarendon: shrink-swell clay limits slab homes on 5% of Clarendon's mapped land.
About 600 of Clarendon's 820 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 Clarendon city limits
| Expansive clay (limits slab homes) | 5.0% |
| High water table (limits basements) | 3.1% |
| Septic fields very limited | 15.1% |
| Clay swell (LEP, by area) | 3.1% |
| High-swell land (LEP 6%+) | 4.9% |
| Mapped soil | 1,931 acres |
| Soil series | Share here | Series nationally: expansive clay |
|---|---|---|
| Miles | 48% | 0% |
| Altus | 12% | n/a |
| Veal | 10% | n/a |
| Cobb | 4% | n/a |
| Springer | 4% | n/a |
| Mobeetie | 4% | n/a |
What the numbers mean here
With shrink-swell clay on 5% and a shallow water table on 3% of the land, the soil survey points to neither problem across most of Clarendon; conditions still vary lot by lot.
Drought in Donley County
100% of Donley 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 Clarendon. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 79226 | 100% | 0 | $0 |
Homes in Clarendon
| Housing units | 820 |
| Median year built | 1964 |
| Built before 1980 | 71% |
| Built 2000 or later | 14% |
| Owner-occupied | 61% |
| Median value, owner-occupied | $103,300 |
| Single-family detached | 76% |
Nearby cities
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