HomeSoil seriesMahoning
Mahoning soil series
Mahoning soils cover 414,200 mapped acres, almost all of them in Ohio. 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 100%.
It is the leading soil series by area in 51 of the counties and cities on this site, including Lorain County, OH; Medina County, OH; Geauga County, OH.
SSURGO survey versions to August 5, 2026 · series description revised 2015-03
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 Mahoning series consists of very deep somewhat poorly drained soils formed in till on till plains. Saturated hydraulic conductivity is moderately low in the subsoil and moderately low or low in the underlying material. Slope ranges from 0 to 15 percent. Mean annual precipitation is about 1065 mm (42 inches) and the mean annual temperature is about 9 degrees C. (48 degrees F.).
Source: USDA NRCS series description (OSD) for Mahoning, revised 2015-03. Read it.
Engineering properties
| Mapped area (SSURGO) | 414,200 acres |
| Shrink-swell limits houses without basements | 0.0% |
| Shallow water table limits basements | 99.5% |
| Very limited for septic absorption fields | 99.5% |
| Most common drainage class | Somewhat poorly drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine, illitic, mesic Aeric Epiaqualfs |
| Type location | Lorain County, Ohio |
Where Mahoning is mapped
| State | Mapped acres |
|---|---|
| Ohio | 414,200 |
Places where Mahoning leads
Counties and cities where Mahoning covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Oberlin, OH | 69% |
| Grafton, OH | 57% |
| Rochester, OH | 53% |
| Wellington, OH | 53% |
| LaGrange, OH | 52% |
| Strongsville, OH | 50% |
| Spencer, OH | 50% |
| Brunswick, OH | 48% |
| Kipton, OH | 46% |
| North Royalton, OH | 43% |
| Aurora, OH | 41% |
| Oakwood, OH | 38% |
| Lorain County, OH | 37% |
| Broadview Heights, OH | 36% |
| Chardon, OH | 35% |
| Hudson, OH | 33% |
| Parma Heights, OH | 32% |
| Kirtland, OH | 31% |
| Olmsted Falls, OH | 31% |
| Woodmere, OH | 31% |
| Middleburg Heights, OH | 30% |
| Sheffield Lake, OH | 30% |
| Highland Hills, OH | 27% |
| South Amherst, OH | 26% |
| Windham, OH | 25% |
| Northfield, OH | 25% |
| Beachwood, OH | 24% |
| Garrettsville, OH | 24% |
| Craig Beach, OH | 24% |
| Willoughby Hills, OH | 24% |
| Mayfield Heights, OH | 23% |
| Parma, OH | 22% |
| Twinsburg, OH | 22% |
| Medina County, OH | 21% |
| Seven Hills, OH | 21% |
| Brook Park, OH | 20% |
| Lorain, OH | 20% |
| Bedford Heights, OH | 19% |
| Geauga County, OH | 18% |
| Maple Heights, OH | 18% |
| Cuyahoga County, OH | 18% |
| Warrensville Heights, OH | 18% |
| Medina, OH | 17% |
| Lyndhurst, OH | 17% |
| Brooklyn, OH | 17% |
| North Olmsted, OH | 17% |
| North Randall, OH | 16% |
| University Heights, OH | 16% |
| Shaker Heights, OH | 14% |
| Portage County, OH | 13% |
| Trumbull County, OH | 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.