Soil series profile
Ragsdale soil series
Ragsdale is a poorly drained soil with a silty clay loam surface, mapped on 150,503 acres in 39 counties across 3 states. Hydrologic group B/D.
- Drainage class
- Poorly drained 98% of mapped acres
- Hydrologic group
- B/D 97% of mapped acres
- Typical topsoil pH
- 6.7 neutral · range 6.5–6.7
- Mapped area
- 151k acres in 39 counties, 3 states
Typical Ragsdale profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–13 in (Ap) | Silty clay loam | 6.7 | 29% | 10% | 5.75% |
| 13–50 in (Bt) | Silty clay loam | 6.7 | 27% | 9% | 1.25% |
| 50–79 in (C) | Silt loam | 7.9 | 12% | 11% | 0.25% |

What this means
What Ragsdale soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Ragsdale soils is neutral: pH 6.7 (most land between 6.5 and 6.7), the range most vegetables, flowers and lawn grasses prefer.
Loamy topsoil (loam, silt loam and similar) covers 97% of mapped Ragsdale acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (58% of mapped Ragsdale acres).
98% of mapped Ragsdale 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 98% 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 Ragsdale 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 Ragsdale soil is found
Mapped acres
Ragsdale is mapped in Indiana, Ohio and Illinois.
| County | Acres | Share of county land |
|---|---|---|
| Greene County, OH | 25,848 | 9.7% |
| Fountain County, IN | 13,335 | 5.3% |
| Putnam County, IN | 13,145 | 4.3% |
| Parke County, IN | 11,753 | 4.3% |
| Vermillion County, IN | 11,486 | 7.2% |
| Montgomery County, IN | 10,687 | 3.3% |
| Vigo County, IN | 10,099 | 4.0% |
| Sullivan County, IN | 9,410 | 3.4% |
| Clinton County, IN | 8,299 | 3.2% |
| Daviess County, IN | 8,269 | 3.0% |
| Knox County, IN | 6,795 | 2.1% |
| Posey County, IN | 3,954 | 1.5% |
| Hendricks County, IN | 3,652 | 1.4% |
| Butler County, OH | 3,414 | 1.2% |
| Spencer County, IN | 2,725 | 1.1% |
| Vanderburgh County, IN | 2,058 | 1.4% |
| Wayne County, IN | 1,102 | 0.4% |
| Clinton County, OH | 1,045 | 0.4% |
| Gallatin County, IL | 694 | 0.3% |
| Warren County, OH | 689 | 0.3% |
| Gibson County, IN | 353 | 0.1% |
| Vermilion County, IL | 323 | 0.1% |
| Edgar County, IL | 295 | 0.1% |
| Union County, IN | 136 | 0.1% |
| Montgomery County, OH | 117 | 0.0% |
| Saline County, IL | 113 | 0.0% |
| Preble County, OH | 108 | 0.0% |
| Warren County, IN | 107 | 0.0% |
| Fayette County, IN | 100 | 0.1% |
| Hamilton County, OH | 98 | 0.0% |
| Edwards County, IL | 85 | 0.1% |
| Cass County, IN | 81 | 0.0% |
| Clay County, IN | 43 | 0.0% |
| Pike County, IN | 29 | 0.0% |
| Warrick County, IN | 29 | 0.0% |
| McLean County, IL | 14 | 0.0% |
| Greene County, IN | 8 | 0.0% |
| Highland County, OH | 5 | 0.0% |
| Howard County, IN | 0 | 0.0% |
Septic absorption fields
NRCS rating, share of Ragsdale acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 97.4% |
| Not rated | 2.6% |
Drainage, water table and flooding
Share of Ragsdale acres
- Depth to seasonal high water table
- About 2 inches (median where reported); within 18 inches on 98% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 0–0% (median 0%).
- 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 | 98.2% |
| Very poorly drained | 0.1% |
| Not rated | 1.6% |
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 | 97.4% |
| C/D: D as is, C if drained | 0.0% |
| Not rated | 2.6% |
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 Ragsdale (component kind "Series") in SSURGO: 150,503 acres.
- Method
- Shares are by mapped acres of Ragsdale components. The profile comes from the single largest Ragsdale component. Full methodology.