Madison County, Ohio
The most common soil here is Kokomo, on about 34% of the land: a silty clay loam, smooth and slightly sticky. Crosby and Lewisburg come next.
About 9% of the land drains well, and 83% stays wet for long stretches; groundwater comes within two feet of the surface under 83% of it.
USDA rates all of the land very limited for a standard septic drain field, and 87% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 4% of the land floods occasionally or more.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Madison County, Ohio, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C/D (varies with drainage). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Madison County, Ohio. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Kokomo silty clay loam, 0 to 2 percent slopes | 103K | Very poorly drained | C/D | Very limited | Very limited |
| Crosby-Lewisburg silt loams, 2 to 6 percent slopes | 78K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Crosby-Lewisburg silt loams, 0 to 2 percent slopes | 44K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Lewisburg-Celina silt loams, 2 to 6 percent slopes | 20K | Moderately well drained | C | Somewhat limited | Very limited |
| Miamian silt loam, 6 to 12 percent slopes, eroded | 7K | Well drained | C | Somewhat limited | Very limited |
| Sloan silty clay loam, frequently flooded | 7K | Very poorly drained | B/D | Very limited | Very limited |
| Westland silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 5K | Poorly drained | B/D | Very limited | Very limited |
| Eldean silt loam, 2 to 6 percent slopes | 4K | Well drained | B | Not limited | Very limited |
| Crosby silt loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 4K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Westland silty clay loam, silty substratum | 4K | Very poorly drained | C/D | Very limited | Very limited |
| Miamian silt loam, 2 to 6 percent slopes | 3K | Well drained | C | Very limited | Very limited |
| Miamian silt loam, 12 to 18 percent slopes, eroded | 3K | Well drained | C | Very limited | Very limited |
| Medway silt loam, occasionally flooded | 3K | Moderately well drained | B/D | Very limited | Very limited |
| Miamian-Eldean silt loams, 2 to 6 percent slopes | 2K | Well drained | C | Not limited | Very limited |
| Odell-Lewisburg complex, 0 to 2 percent slopes | 2K | Somewhat poorly drained | C | Very limited | Very limited |
| Patton silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 1K | Poorly drained | B/D | Very limited | Very limited |
| Ross silt loam, 0 to 2 percent slopes, occasionally flooded | 987 | Well drained | B | Very limited | Very limited |
| Water | 957 | Not rated | Not rated | ||
| Kendallville silt loam, 2 to 6 percent slopes | 948 | Well drained | C | Not limited | Very limited |
| Miamian silt loam, 18 to 25 percent slopes, eroded | 872 | Well drained | C | Very limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 87% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.