Okfuskee County, Oklahoma
A shallow water table limits basements on 39% of Okfuskee County's mapped land, a higher share than 57% of US counties. Shrink-swell clay limits houses without basements on 30%.
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. 51% of homes were built before 1980, against 50% nationally; the median home dates from 1980.
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 Okfuskee County
| Expansive clay (limits slab homes) | 30.1% |
| High water table (limits basements) | 39.0% |
| Septic fields very limited | 88.9% |
| Clay swell (LEP, by area) | 3.8% |
| High-swell land (LEP 6%+) | 29.6% |
| Mapped soil | 402,515 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Stephenville | 8% | 0% |
| Eram | 8% | n/a |
| Darnell | 6% | n/a |
| Dennis | 5% | 100% |
| Hector | 5% | n/a |
| Endsaw | 5% | n/a |
How we count · survey areas OK107 (2025-08-29)
What the numbers mean here
Clay swell averages a linear extensibility of 3.8% by land area here, and 30% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 30% of the mapped land.
Clay shrinks as it dries: 100% of the county is in drought on the latest map, and 30% of Okfuskee County's mapped land has shrink-swell clay.
On 39% of Okfuskee County's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
Rain over the 12 months to August 2026: 31.18 in, 11.53 in below the 1991-2020 average year of 42.71 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 47 of the last 52 weeks; the most was 100% of its area, in 26 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 | 20.4% |
| D4 exceptional | 0% |
Flood losses since 2016
FEMA's flood data list no flood losses in Okfuskee County since 2016.
Rain
| Average year, 1991-2020 | 42.71 in |
| 12 months to August 2026 | 31.18 in (-11.53) |
| 2025 | 47.66 in (+4.95) |
| Wettest year since 1895 | 1908: 67.62 in |
| Driest year since 1895 | 1936: 21.85 in |
| Days with 1 inch or more, normal at PRAGUE 2W (23 mi away) | 12.6 |
Homes
| Housing units | 4,798 |
| Median year built | 1980 |
| Built before 1980 | 51% |
| Built 2000 or later | 23% |
| Owner-occupied | 69% |
| Median value, owner-occupied | $115,900 |
| Single-family detached | 74% |
What repairs cost
Published ranges from cost guides, not quotes. More sources, and where they disagree.
Nearby counties
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Okmulgee County, OK | 24 mi | 37% | 53% |
| Seminole County, OK | 26 mi | 17% | 25% |
| Hughes County, OK | 29 mi | 31% | 43% |
| Creek County, OK | 31 mi | 27% | 38% |
| Lincoln County, OK | 35 mi | 27% | 10% |
| McIntosh County, OK | 38 mi | 35% | 36% |
| Pottawatomie County, OK | 40 mi | 23% | 6% |
| Pittsburg County, OK | 50 mi | 44% | 41% |
Sources: USDA SSURGO (August 29, 2025) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · NOAA (August 2026) · Census ACS 2020-2024. Methods · Data status