Soil series profile

Jessup soil series

Jessup is a well drained soil with a silt loam surface, mapped on 66,686 acres in 7 counties across 2 states. Hydrologic group C.

#4805 by mapped area fine Typic Hapludalfs (Alfisols)

Drainage class
Well drained
90% of mapped acres
Hydrologic group
C
87% of mapped acres
Typical topsoil pH
5.3
strongly acidic · range 5.3–5.3
Mapped area
67k
acres in 7 counties, 2 states

Typical Jessup profile

Texture and pH by depth

Typical Jessup soil profile by depth 0 in 20 in 40 in 60 in 0–12 in · H1 · pH 5.3 · 22% clay Silt loam 12–18 in · H2 · pH 5.3 · 33% clay Silty clay loam 18–41 in · H3 · pH 5.9 · 45% clay Silty clay 41–64 in · H4 · pH 7.5 · 48% clay Clay 64–74 in · Cr Weathered bedrock
Depth to scale. More strongly shaded layers hold more clay. Horizon names are the soil survey's (A = topsoil, B = subsoil, C = parent material).
Show as a table
Typical Jessup horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–12 in (H1) Silt loam 5.3 22% 9% 2%
12–18 in (H2) Silty clay loam 5.3 33% 18% 0.25%
18–41 in (H3) Silty clay 5.9 45% 7% 0.25%
41–64 in (H4) Clay 7.5 48% 23% 0.25%
64–74 in (Cr) Weathered bedrock Not reported Not reported Not reported Not reported

Representative values from the most extensive Jessup map unit (Jessup silt loam, 12 to 20 percent slopes, survey area KY603). Other map units of this series vary within the series range.

Hands holding dark garden soil
Stock photo for illustration, not a sample of this soil series. Credit on the Sources & method page.

What this means

What Jessup soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Jessup soils is strongly acidic: pH 5.3. Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.

Loamy topsoil (loam, silt loam and similar) covers 87% of mapped Jessup acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (83% of mapped Jessup acres).

90% of mapped Jessup acres is moderately well to excessively drained, which suits most garden plants.

For lawns and yards

On 87% 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.

For a septic system

For conventional septic absorption fields, NRCS rates 87% of the acres in mapped Jessup soils very limited, 0% somewhat limited and 0% not limited (13% 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.

Generated from the mapped numbers above using fixed rules, not a site visit. See how these notes are written.

Where Jessup soil is found

Mapped acres

Jessup is mapped in Ohio and Kentucky.

Counties with the most mapped Jessup soil
County Acres Share of county land
Adams County, OH 34,459 9.2%
Boone County, KY 21,390 13.7%
Brown County, OH 7,785 2.5%
Kenton County, KY 1,714 1.7%
Campbell County, KY 978 1.0%
Highland County, OH 345 0.1%
Clermont County, OH 14 0.0%

Septic absorption fields

NRCS rating, share of Jessup acres

Not limited 0%
Somewhat limited 0%
Very limited 87%
Not rated 13%
Septic tank absorption field rating across mapped Jessup acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Jessup acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited86.7%
Not rated13.3%

Drainage, water table and flooding

Share of Jessup acres

Depth to seasonal high water table
None reported within about 6.5 feet (median where reported).
Flooding
Not mapped as flooding on most acres.
Slope
Typically 5–20% (median 12%).
Topsoil organic matter
Median 2%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 90%
Moderately well drained 0%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Not rated 10%
Drainage class across mapped Jessup acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Jessup acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained90.2%
Moderately well drained0.0%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained0.0%
Not rated9.8%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 87%
D: very slow infiltration (clayey, shallow or wet) 0%
A/D: D as is, A if drained 0%
B/D: D as is, B if drained 0%
C/D: D as is, C if drained 0%
Not rated 13%
Hydrologic soil group across mapped Jessup acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Jessup acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration86.7%
D: very slow infiltration (clayey, shallow or wet)0.0%
A/D: D as is, A if drained0.0%
B/D: D as is, B if drained0.0%
C/D: D as is, C if drained0.0%
Not rated13.3%

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 Jessup (component kind "Series") in SSURGO: 66,686 acres.
Method
Shares are by mapped acres of Jessup components. The profile comes from the single largest Jessup component. Full methodology.

Independent reference site. No government affiliation or endorsement.

Full narrative description: USDA Official Soil Series Description for Jessup.