HomeSoil seriesOshtemo

Oshtemo soil series

Oshtemo soils cover 819,169 mapped acres, mostly in Michigan, Indiana and Wisconsin. USDA rates shrink-swell a limit for houses without basements on 0% of that land, and a shallow water table a limit for basements on 0%.

It is the leading soil series by area in 13 of the counties and cities on this site, including St. Joseph County, MI; Calhoun County, MI; Barry County, MI.

SSURGO survey versions to August 5, 2026 · series description revised 2017-07

0%

of its land: shrink-swell limits houses without basements

0%

of its land: a shallow water table limits basements

1.5%

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

15%

median highest clay content in the top 150 cm

USDA's description

The Oshtemo series consists of very deep, well drained soils formed in stratified loamy and sandy deposits on outwash plains, valley trains, moraines, and beach ridges. Slope ranges from 0 to 55 percent. Mean annual precipitation is about 838 mm (33 inches), and mean annual temperature is about 10.0 degrees C (50 degrees F).

Source: USDA NRCS series description (OSD) for Oshtemo, revised 2017-07. Read it.

Engineering properties

Mapped area (SSURGO)819,169 acres
Shrink-swell limits houses without basements0.0%
Shallow water table limits basements0.0%
Very limited for septic absorption fields99.2%
Most common drainage classWell drained
Most common hydrologic soil groupA
Taxonomic classCoarse-loamy, mixed, active, mesic Typic Hapludalfs
Type locationSt. Joseph County, Michigan

Where Oshtemo is mapped

StateMapped acres
Michigan602,311
Indiana128,918
Wisconsin44,827
Ohio43,109
Pennsylvania4

Places where Oshtemo leads

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

Other places where Oshtemo is a main soil

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

Counties

Texas and Ohio cities

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.