Soil series profile

Leesburg soil series

Leesburg is a well drained soil with a stony loam surface, mapped on 227,739 acres in 16 counties across 3 states. Hydrologic group B.

#1545 by mapped area fine-loamy Typic Paleudults (Ultisols)

Drainage class: Well drained
Hydrologic group: B
Typical topsoil pH: 5.0
Mapped area: 228k

Typical Leesburg profile

Texture and pH by depth

Depth to scale. More strongly shaded layers hold more clay. Horizon names are the soil survey's (A = topsoil, B = subsoil, C = parent material).

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Typical Leesburg horizons (representative values)
Depth	Texture	pH	Clay	Sand	Organic matter
0–7 in (A)	Stony loam	5.0	13%	46%	2%
7–38 in (Bt1)	Gravelly clay loam	5.0	28%	37%	0.75%
38–72 in (2Bt2)	Gravelly clay	5.0	41%	22%	0.25%

Representative values from the most extensive Leesburg map unit (Enders-Leesburg complex, 20 to 40 percent slopes, survey area AR143). Other map units of this series vary within the series range.

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

What this means

What Leesburg soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Leesburg soils is very strongly acidic: pH 5.0. 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 100% of mapped Leesburg acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is stony loam (73% of mapped Leesburg acres).

100% of mapped Leesburg 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 57% of the acres in mapped Leesburg soils very limited, 43% 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.

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

Where Leesburg soil is found

Mapped acres

Leesburg is mapped in Arkansas, Alabama and Tennessee.

Counties with the most mapped Leesburg soil
County	Acres	Share of county land
Madison County, AR	83,832	15.7%
Washington County, AR	58,946	9.7%
Cherokee County, AL	25,482	8.3%
Newton County, AR	14,100	2.7%
Winston County, AL	11,777	3.4%
Johnson County, AR	10,697	2.5%
Jefferson County, AL	9,408	1.6%
Carroll County, AR	5,376	1.3%
Etowah County, AL	4,874	1.7%
Pope County, AR	878	0.2%
Cocke County, TN	844	0.3%
Hawkins County, TN	473	0.2%
Randolph County, AL	406	0.1%
Calhoun County, AL	386	0.1%
Morgan County, AL	208	0.1%
Searcy County, AR	51	0.0%

Septic absorption fields

NRCS rating, share of Leesburg acres

Not limited 0%

Somewhat limited 43%

Very limited 57%

Septic tank absorption field rating across mapped Leesburg acres. Scale 0 to 100% of mapped land.

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Septic tank absorption field rating across mapped Leesburg acres.
Category	Share of acres
Not limited	0.0%
Somewhat limited	43.4%
Very limited	56.6%

Drainage, water table and flooding

Share of Leesburg 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 10–30% (median 30%).
Topsoil organic matter: Median 2%.

Drainage class

Excessively drained 0%

Somewhat excessively drained 0%

Well drained 100%

Moderately well drained 0%

Somewhat poorly drained 0%

Poorly drained 0%

Very poorly drained 0%

Drainage class across mapped Leesburg acres. Scale 0 to 100% of mapped land.

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Drainage class across mapped Leesburg acres.
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

A: fast infiltration (mostly sandy or gravelly) 0%

B: moderate infiltration 100%

C: slow infiltration 0%

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%

Hydrologic soil group across mapped Leesburg acres. Scale 0 to 100% of mapped land.

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Hydrologic soil group across mapped Leesburg acres.
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 Leesburg (component kind "Series") in SSURGO: 227,739 acres.
Method: Shares are by mapped acres of Leesburg components. The profile comes from the single largest Leesburg component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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