HomeSoil seriesCrockett
Crockett soil series
Crockett soils cover 1,324,041 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 94% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 49 of the counties and cities on this site, including Hopkins County, TX; Navarro County, TX; Hunt County, TX.
SSURGO survey versions to August 5, 2026 · series description revised 2015-04
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Crockett series consists of soils that are deep to weathered shale of Cretaceous age. They are moderately well drained, and very slowly permeable. These soils are on broad ridges on the dissected plains. These nearly level to moderately sloping soils formed in alkaline residuum derived from interbedded shale and clay. Slopes are dominantly 1 to 5 percent, but range from 0 to 10 percent.
Source: USDA NRCS series description (OSD) for Crockett, revised 2015-04. Read it.
Engineering properties
| Mapped area (SSURGO) | 1,324,041 acres |
| Shrink-swell limits houses without basements | 94.1% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 94.1% |
| Most common drainage class | Moderately well drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine, smectitic, thermic Udertic Paleustalfs |
| Type location | Kaufman County, Texas |
Where Crockett is mapped
| State | Mapped acres |
|---|---|
| Texas | 1,305,439 |
| Oklahoma | 18,602 |
Places where Crockett leads
Counties and cities where Crockett covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Navarro, TX | 88% |
| Cumby, TX | 86% |
| Blooming Grove, TX | 86% |
| Point, TX | 85% |
| Dawson, TX | 82% |
| Toco, TX | 81% |
| Eureka, TX | 77% |
| Wortham, TX | 77% |
| Wills Point, TX | 76% |
| Bremond, TX | 71% |
| Mildred, TX | 69% |
| Kirvin, TX | 65% |
| Wolfe City, TX | 65% |
| Angus, TX | 63% |
| Streetman, TX | 61% |
| Talco, TX | 60% |
| East Tawakoni, TX | 60% |
| Sadler, TX | 55% |
| Lone Oak, TX | 51% |
| Hubbard, TX | 50% |
| Tioga, TX | 46% |
| Luling, TX | 44% |
| Whitesboro, TX | 42% |
| Groesbeck, TX | 41% |
| Oak Valley, TX | 38% |
| Commerce, TX | 37% |
| Retreat, TX | 37% |
| Richland, TX | 37% |
| Mabank, TX | 36% |
| Waelder, TX | 34% |
| Kosse, TX | 33% |
| Ladonia, TX | 33% |
| Corsicana, TX | 32% |
| Union Valley, TX | 32% |
| Pottsboro, TX | 31% |
| Tira, TX | 30% |
| Hopkins County, TX | 27% |
| Oak Grove, TX | 27% |
| Post Oak Bend, TX | 24% |
| Kingsbury, TX | 23% |
| Teague, TX | 22% |
| Whitney, TX | 20% |
| Navarro County, TX | 20% |
| Hunt County, TX | 20% |
| Poetry, TX | 20% |
| Elgin, TX | 19% |
| Caldwell County, TX | 18% |
| Limestone County, TX | 14% |
| Guadalupe County, TX | 12% |
Sources
Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.