HomeSoil seriesBlount
Blount soil series
Blount soils cover 2,603,411 mapped acres, mostly in Ohio, Indiana and Michigan. USDA rates shrink-swell a limit for houses without basements on 10% of that land, and a shallow water table a limit for basements on over 99%.
It is the leading soil series by area in 94 of the counties and cities on this site, including Hardin County, OH; Adams County, IN; Auglaize County, OH.
SSURGO survey versions to August 5, 2026 · series description revised 2021-11
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 Blount series consists of very deep, somewhat poorly drained soils that are moderately deep or deep to dense till. Blount soils formed in till and are on wave-worked till plains, till plains, and near-shore zones (relict). Slope ranges from 0 to 6 percent. Mean annual precipitation is about 890 mm (35 inches), and mean annual temperature is about 10.6 degrees C (51 degrees F).
Source: USDA NRCS series description (OSD) for Blount, revised 2021-11. Read it.
Engineering properties
| Mapped area (SSURGO) | 2,603,411 acres |
| Shrink-swell limits houses without basements | 10.3% |
| Shallow water table limits basements | 99.9% |
| Very limited for septic absorption fields | 99.9% |
| Most common drainage class | Somewhat poorly drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine, illitic, mesic Aeric Epiaqualfs |
| Type location | Mercer County, Ohio |
Where Blount is mapped
| State | Mapped acres |
|---|---|
| Ohio | 1,371,954 |
| Indiana | 837,713 |
| Michigan | 324,952 |
| Illinois | 50,225 |
| Wisconsin | 18,567 |
Places where Blount leads
Counties and cities where Blount covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Caledonia, OH | 77% |
| Blakeslee, OH | 76% |
| Patterson, OH | 74% |
| New Riegel, OH | 73% |
| Cairo, OH | 71% |
| Edison, OH | 67% |
| Venedocia, OH | 67% |
| Republic, OH | 66% |
| Waynesfield, OH | 66% |
| Spencerville, OH | 65% |
| Ashley, OH | 64% |
| North Star, OH | 64% |
| Coldwater, OH | 63% |
| Jackson Center, OH | 62% |
| Osgood, OH | 62% |
| Union City, OH | 61% |
| Russia, OH | 61% |
| Arcadia, OH | 61% |
| Yorkshire, OH | 60% |
| Rossburg, OH | 60% |
| Forest, OH | 59% |
| Willshire, OH | 59% |
| Vanlue, OH | 58% |
| Harrod, OH | 58% |
| Anna, OH | 56% |
| New Weston, OH | 56% |
| New Knoxville, OH | 55% |
| Cardington, OH | 55% |
| Rawson, OH | 55% |
| Mount Cory, OH | 54% |
| Holiday City, OH | 54% |
| Mendon, OH | 53% |
| Montezuma, OH | 53% |
| New Bremen, OH | 53% |
| Rockford, OH | 53% |
| Chickasaw, OH | 52% |
| Wren, OH | 52% |
| Mount Victory, OH | 52% |
| Ada, OH | 52% |
| Fort Loramie, OH | 51% |
| Botkins, OH | 51% |
| West Mansfield, OH | 51% |
| Marseilles, OH | 51% |
| Versailles, OH | 50% |
| Cridersville, OH | 49% |
| Buckland, OH | 48% |
| Wharton, OH | 48% |
| Waldo, OH | 47% |
| Magnetic Springs, OH | 47% |
| Burkettsville, OH | 46% |
| Dunkirk, OH | 46% |
| St. Henry, OH | 45% |
| Arlington, OH | 44% |
| Minster, OH | 43% |
| Hardin County, OH | 43% |
| Kirby, OH | 43% |
| Kettlersville, OH | 41% |
| Lafayette, OH | 41% |
| Montpelier, OH | 41% |
| Adams County, IN | 40% |
| Nevada, OH | 40% |
| Bluffton, OH | 39% |
| Beaverdam, OH | 39% |
| Auglaize County, OH | 39% |
| Celina, OH | 39% |
| Mercer County, OH | 39% |
| Richwood, OH | 39% |
| Union County, OH | 38% |
| Allen County, OH | 38% |
| Shelby County, OH | 37% |
| Edon, OH | 37% |
| Marysville, OH | 36% |
| Alger, OH | 36% |
| Wapakoneta, OH | 35% |
| Kenton, OH | 35% |
| Carey, OH | 35% |
| Huntington County, IN | 35% |
| Wauseon, OH | 32% |
| Hancock County, OH | 32% |
| St. Marys, OH | 31% |
| Seneca County, OH | 30% |
| Delaware, OH | 30% |
| Powell, OH | 29% |
| DeKalb County, IN | 29% |
| Williams County, OH | 28% |
| Pioneer, OH | 27% |
| Marion County, OH | 27% |
| West Unity, OH | 26% |
| Wyandot County, OH | 22% |
| Allen County, IN | 22% |
| Miami County, IN | 21% |
| Elida, OH | 21% |
| Fayette, OH | 20% |
| Sidney, OH | 20% |
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.