Soil series profile
Ogle soil series
Ogle is a well drained soil with a silt loam surface, mapped on 44,587 acres in 8 counties across 2 states. Hydrologic group B.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- B 100% of mapped acres
- Typical topsoil pH
- 6.3 slightly acidic · range 5.8–6.3
- Mapped area
- 45k acres in 8 counties, 2 states
Typical Ogle profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–11 in (A) | Silt loam | 6.3 | 24% | 3% | 4% |
| 11–33 in (Bt) | Silty clay loam | 5.6 | 31% | 3% | 0.5% |
| 33–80 in (2Bt) | Clay loam | 5.8 | 32% | 35% | 0.25% |
What this means
What Ogle soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Ogle soils is slightly acidic: pH 6.3 (most land between 5.8 and 6.3), the range most vegetables, flowers and lawn grasses prefer.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Ogle acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (100% of mapped Ogle acres).
100% of mapped Ogle acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
Most land is in hydrologic groups B and C, where rain soaks in at a moderate pace.
For a septic system
For conventional septic absorption fields, NRCS rates 0% of the acres in mapped Ogle soils very limited, 100% somewhat limited and 0% not limited.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Ogle soil is found
Mapped acres
Ogle is mapped in Illinois and Wisconsin.
| County | Acres | Share of county land |
|---|---|---|
| Winnebago County, IL | 12,125 | 3.9% |
| Ogle County, IL | 11,565 | 2.4% |
| Rock County, WI | 10,001 | 2.2% |
| Stephenson County, IL | 5,307 | 1.5% |
| Green County, WI | 1,682 | 0.5% |
| Boone County, IL | 1,681 | 1.0% |
| Whiteside County, IL | 1,536 | 0.4% |
| Carroll County, IL | 690 | 0.2% |
Septic absorption fields
NRCS rating, share of Ogle acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 100.0% |
| Very limited | 0.0% |
Drainage, water table and flooding
Share of Ogle acres
- Depth to seasonal high water table
- About 5.8 feet (69 in) (median where reported).
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 4–4% (median 4%).
- 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 | 100.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| 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 | 100.0% |
| 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 | 0.0% |
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 Ogle (component kind "Series") in SSURGO: 44,587 acres.
- Method
- Shares are by mapped acres of Ogle components. The profile comes from the single largest Ogle component. Full methodology.