HomeSoil seriesDennis

Dennis soil series

Dennis soils cover 1,675,285 mapped acres, mostly in Oklahoma, Kansas and Missouri. USDA rates shrink-swell a limit for houses without basements on 92% of that land, and a shallow water table a limit for basements on 100%.

It is the leading soil series by area in 10 of the counties and cities on this site, including Cherokee County, KS; Craig County, OK; Tulsa County, OK.

SSURGO survey versions to August 5, 2026 · series description revised 2015-12

92%

of its land: shrink-swell limits houses without basements

100%

of its land: a shallow water table limits basements

5.9%

median highest linear extensibility (6% and up is high)

44%

median highest clay content in the top 150 cm

USDA's description

The Dennis series consists of very deep, somewhat poorly drained soils that formed in residuum weathered from shale of Pennsylvanian age. These soils are on interfluves and hillslopes. Slope ranges from 0 to 8 percent. Mean annual precipitation is about 991 mm (39 inches), and mean annual temperature is about 16 degrees C (61 degrees F).

Source: USDA NRCS series description (OSD) for Dennis, revised 2015-12. Read it.

Engineering properties

Mapped area (SSURGO)1,675,285 acres
Shrink-swell limits houses without basements91.5%
Shallow water table limits basements100.0%
Very limited for septic absorption fields100.0%
Most common drainage classSomewhat poorly drained
Most common hydrologic soil groupC/D
Taxonomic classFine, mixed, active, thermic Aquic Argiudolls
Type locationRogers County, Oklahoma

Where Dennis is mapped

StateMapped acres
Oklahoma1,016,839
Kansas643,089
Missouri15,271
Arkansas86

Places where Dennis leads

Counties and cities where Dennis covers more mapped land than any other series.

PlaceShare of mapped land
Cherokee County, KS22%
Craig County, OK21%
Tulsa County, OK21%
Wagoner County, OK18%
Muskogee County, OK17%
Washington County, OK17%
Rogers County, OK16%
Woodson County, KS15%
Okmulgee County, OK14%
Nowata County, OK12%

Other places where Dennis is a main soil

Counties and cities where Dennis is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.

Counties

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.