Floyd County, Texas
Shrink-swell clay limits houses without basements on 84% of Floyd County's mapped land, a higher share than 100% of US counties and the 2nd highest of 254 Texas counties. A shallow water table limits basements on 10%.
100% of the county is in drought on the October 13, 2026 Drought Monitor map. FEMA's flood data list no flood losses here since 2016. 85% of homes were built before 1980, against 50% nationally; the median home dates from 1962.
Data as of October 13, 2026 · sources
expansive clay: shrink-swell limits slab homes
high water table: limits basements
in drought, October 13, 2026
of homes built before 1980
Soil under Floyd County
| Expansive clay (limits slab homes) | 84.0% |
| High water table (limits basements) | 10.0% |
| Septic fields very limited | 88.8% |
| Clay swell (LEP, by area) | 6.1% |
| High-swell land (LEP 6%+) | 82.0% |
| Mapped soil | 635,065 acres |
How we count · survey areas TX153 (2025-09-04)
What the numbers mean here
Clay swell averages a linear extensibility of 6.1% by land area here, and 82% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 84% of the mapped land.
Clay shrinks as it dries: 100% of the county is in drought on the latest map, and 84% of Floyd County's mapped land has shrink-swell clay.
Rain over the 12 months to August 2026: 11.18 in, 9.78 in below the 1991-2020 average year of 20.96 in.
USDA rates 89% of the land very limited for septic absorption fields.
Drought
100% of the county is in drought (D1 or worse) on the October 13, 2026 map. Part of the county was in drought in 49 of the last 52 weeks; the most was 100% of its area, in 41 weeks, most recently on the October 13, 2026 map.
| Category, October 13, 2026 | Share of county |
|---|---|
| D0 abnormally dry or worse | 100% |
| D1 moderate drought or worse | 100% |
| D2 severe or worse | 100% |
| D3 extreme or worse | 68.5% |
| D4 exceptional | 9.6% |
Flood losses since 2016
FEMA's flood data list no flood losses in Floyd County since 2016.
Rain
| Average year, 1991-2020 | 20.96 in |
| 12 months to August 2026 | 11.18 in (-9.78) |
| 2025 | 17.79 in (-3.17) |
| Wettest year since 1895 | 1941: 39.77 in |
| Driest year since 1895 | 2011: 7.66 in |
| Days with 1 inch or more, normal at FLOYDADA (6 mi away) | 5.2 |
Homes
| Housing units | 2,592 |
| Median year built | 1962 |
| Built before 1980 | 85% |
| Built 2000 or later | 7% |
| Owner-occupied | 73% |
| Median value, owner-occupied | $89,600 |
| Single-family detached | 92% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Cities in Floyd County
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Motley County, TX | 29 mi | 7% | under 1% |
| Hale County, TX | 30 mi | 83% | 7% |
| Briscoe County, TX | 32 mi | 40% | 8% |
| Crosby County, TX | 32 mi | 54% | 4% |
| Swisher County, TX | 40 mi | 87% | 10% |
| Dickens County, TX | 43 mi | 11% | 1% |
| Lubbock County, TX | 44 mi | 42% | 4% |
| Hall County, TX | 49 mi | 1% | under 1% |
Sources: USDA SSURGO (September 4, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status