Soil series profile
Crosier soil series
Crosier is a somewhat poorly drained soil with a loam surface, mapped on 259,617 acres in 31 counties across 3 states. Hydrologic group C/D.
- Drainage class
- Somewhat poorly drained 100% of mapped acres
- Hydrologic group
- C/D 100% of mapped acres
- Typical topsoil pH
- 6.5 slightly acidic · range 6.5–6.5
- Mapped area
- 260k acres in 31 counties, 3 states
Typical Crosier profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–11 in (Ap) | Loam | 6.5 | 15% | 43% | 2% |
| 11–30 in (Btg) | Clay loam | 6.2 | 28% | 40% | 0.5% |
| 30–38 in (BC) | Loam | 7.6 | 15% | 45% | 0.25% |
| 38–80 in (Cd) | Loam | 7.9 | 15% | 45% | 0.25% |

What this means
What Crosier soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Crosier soils is slightly acidic: pH 6.5, the range most vegetables, flowers and lawn grasses prefer.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Crosier acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is loam (96% of mapped Crosier acres).
100% of mapped Crosier acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.
For lawns and yards
On 100% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
A seasonal high water table comes within 18 inches of the surface on 100% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.
For a septic system
For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Crosier soils very limited, 0% somewhat limited and 0% not limited.
Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Crosier soil is found
Mapped acres
Crosier is mapped in Indiana, Michigan and Ohio.
| County | Acres | Share of county land |
|---|---|---|
| Elkhart County, IN | 52,882 | 17.9% |
| Kosciusko County, IN | 37,175 | 10.9% |
| Marshall County, IN | 32,778 | 11.6% |
| Fulton County, IN | 28,728 | 12.2% |
| St. Joseph County, IN | 28,223 | 9.7% |
| Cass County, IN | 20,137 | 7.6% |
| Noble County, IN | 8,382 | 3.2% |
| Pulaski County, IN | 7,197 | 2.6% |
| Wabash County, IN | 6,676 | 2.5% |
| Steuben County, IN | 5,266 | 2.7% |
| Miami County, IN | 5,039 | 2.1% |
| Washtenaw County, MI | 4,951 | 1.1% |
| White County, IN | 4,909 | 1.5% |
| Hillsdale County, MI | 2,902 | 0.8% |
| Lapeer County, MI | 2,878 | 0.7% |
| Lenawee County, MI | 2,032 | 0.4% |
| LaGrange County, IN | 1,965 | 0.8% |
| Calhoun County, MI | 1,525 | 0.3% |
| Carroll County, IN | 1,481 | 0.6% |
| Jasper County, IN | 1,036 | 0.3% |
| Whitley County, IN | 731 | 0.3% |
| Huntington County, IN | 686 | 0.3% |
| Macomb County, MI | 594 | 0.2% |
| Starke County, IN | 587 | 0.3% |
| DeKalb County, IN | 430 | 0.2% |
| Allen County, IN | 186 | 0.0% |
| LaPorte County, IN | 130 | 0.0% |
| Wells County, IN | 80 | 0.0% |
| Allen County, OH | 23 | 0.0% |
| Oakland County, MI | 9 | 0.0% |
| Genesee County, MI | 1 | 0.0% |
Septic absorption fields
NRCS rating, share of Crosier acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 100.0% |
Drainage, water table and flooding
Share of Crosier acres
- Depth to seasonal high water table
- About 1.0 feet (12 in) (median where reported); within 18 inches on 100% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 1–3% (median 1%).
- Topsoil organic matter
- Median 2%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 100.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 100.0% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Crosier (component kind "Series") in SSURGO: 259,617 acres.
- Method
- Shares are by mapped acres of Crosier components. The profile comes from the single largest Crosier component. Full methodology.