Soil series profile
Trumbull soil series
Trumbull is a poorly drained soil with a silty clay loam surface, mapped on 77,221 acres in 13 counties in OH. Hydrologic group C/D.
- Drainage class
- Poorly drained 97% of mapped acres
- Hydrologic group
- C/D 97% of mapped acres
- Typical topsoil pH
- 5.8 moderately acidic · range 5.8–5.8
- Mapped area
- 77k acres in 13 counties, 1 state
Typical Trumbull profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–8 in (Ap) | Silty clay loam | 5.8 | 33% | 13% | 4% |
| 8–14 in (Bg) | Silty clay loam | 5.8 | 32% | 16% | 0.65% |
| 14–34 in (Btg1) | Clay | 6.3 | 41% | 20% | 0.35% |
| 34–44 in (Btg2) | Clay | 6.8 | 41% | 20% | 0.2% |
| 44–60 in (Cg) | Silty clay loam | 8.0 | 34% | 16% | 0.2% |

What this means
What Trumbull soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Trumbull soils is moderately acidic: pH 5.8. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.
Loamy topsoil (loam, silt loam and similar) covers 97% of mapped Trumbull acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (68% of mapped Trumbull acres).
97% of mapped Trumbull 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 97% 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 97% 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 97% of the acres in mapped Trumbull soils very limited, 0% somewhat limited and 0% not limited (3% not rated, such as urban land, pits or water).
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 Trumbull soil is found
Mapped acres
Trumbull is mapped in Ohio.
| County | Acres | Share of county land |
|---|---|---|
| Lorain County, OH | 26,777 | 8.5% |
| Portage County, OH | 14,090 | 4.5% |
| Mahoning County, OH | 11,360 | 4.3% |
| Trumbull County, OH | 7,344 | 1.9% |
| Cuyahoga County, OH | 4,796 | 1.6% |
| Medina County, OH | 4,289 | 1.6% |
| Geauga County, OH | 3,480 | 1.3% |
| Summit County, OH | 3,130 | 1.2% |
| Lake County, OH | 913 | 0.6% |
| Ashland County, OH | 377 | 0.1% |
| Stark County, OH | 263 | 0.1% |
| Erie County, OH | 233 | 0.1% |
| Huron County, OH | 170 | 0.1% |
Septic absorption fields
NRCS rating, share of Trumbull acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 96.6% |
| Not rated | 3.4% |
Drainage, water table and flooding
Share of Trumbull acres
- Depth to seasonal high water table
- About 0 inches (median where reported); within 18 inches on 97% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 1–1% (median 1%).
- Topsoil organic matter
- Median 4%.
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 | 0.0% |
| Poorly drained | 97.4% |
| Very poorly drained | 0.0% |
| Not rated | 2.6% |
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 | 96.6% |
| Not rated | 3.4% |
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 Trumbull (component kind "Series") in SSURGO: 77,221 acres.
- Method
- Shares are by mapped acres of Trumbull components. The profile comes from the single largest Trumbull component. Full methodology.