Soil series profile

Cowarts soil series

Cowarts is a well drained soil with a loamy sand surface, mapped on 1,166,473 acres in 90 counties across 5 states. Hydrologic group C.

#133 by mapped area fine-loamy Typic Kanhapludults (Ultisols)

Drainage class
Well drained
97% of mapped acres
Hydrologic group
C
77% of mapped acres
Typical topsoil pH
5.3
strongly acidic · range 5.0–5.3
Mapped area
1.2M
acres in 90 counties, 5 states

Typical Cowarts profile

Texture and pH by depth

Typical Cowarts soil profile by depth 0 in 10 in 20 in 30 in 40 in 50 in 0–9 in · H1 · pH 5.2 · 7% clay Loamy sand 9–16 in · H2 · pH 5.0 · 13% clay Sandy loam 16–34 in · H3 · pH 5.0 · 30% clay Sandy clay loam 34–60 in · H4 · pH 5.2 · 27% clay Sandy clay loam
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 Cowarts horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–9 in (H1) Loamy sand 5.2 7% 84% 0.75%
9–16 in (H2) Sandy loam 5.0 13% 68% 0.25%
16–34 in (H3) Sandy clay loam 5.0 30% 56% 0.25%
34–60 in (H4) Sandy clay loam 5.2 27% 56% 0.25%

Representative values from the most extensive Cowarts map unit (Cowarts loamy sand, 12 to 25 percent slopes, survey area GA630). 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 Cowarts soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Cowarts soils is strongly acidic: pH 5.3 (most land between 5.0 and 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.

Sandy topsoil covers 81% of mapped Cowarts acres. It drains fast and warms early in spring, but dries out and loses nutrients quickly: mulch, compost and steady watering help. The most common surface texture is loamy sand (78% of mapped Cowarts acres).

100% of mapped Cowarts acres is moderately well to excessively drained, which suits most garden plants.

For lawns and yards

On 77% 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 37% of the acres in mapped Cowarts soils very limited, 55% somewhat limited and 7% not limited.

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 Cowarts soil is found

Mapped acres

Cowarts is mapped in Georgia, Alabama, Florida, South Carolina and North Carolina. The 60 counties with the most Cowarts acres:

Counties with the most mapped Cowarts soil
County Acres Share of county land
Pike County, AL 75,546 19.9%
Taylor County, GA 64,525 26.7%
Barbour County, AL 57,826 12.1%
Stewart County, GA 55,820 21.8%
Crawford County, GA 47,180 22.9%
Covington County, AL 46,608 7.9%
Macon County, AL 31,992 9.3%
Emanuel County, GA 31,445 8.1%
Marion County, GA 25,581 11.0%
Randolph County, GA 25,019 10.8%
Laurens County, GA 24,631 5.5%
Treutlen County, GA 24,316 20.9%
Screven County, GA 23,284 6.6%
Jenkins County, GA 22,832 11.5%
Quitman County, GA 20,836 24.3%
Toombs County, GA 19,836 9.4%
Lee County, AL 19,801 5.8%
Telfair County, GA 19,735 7.9%
Burke County, GA 19,006 4.1%
Dodge County, GA 18,281 6.7%
Turner County, GA 17,104 10.8%
Wilcox County, GA 16,773 7.9%
Crisp County, GA 16,401 10.9%
Bulloch County, GA 15,976 4.1%
Russell County, AL 15,453 4.3%
Montgomery County, GA 14,964 10.8%
Gadsden County, FL 14,704 4.5%
Washington County, GA 14,702 3.9%
Grady County, GA 13,756 5.7%
Talbot County, GA 13,632 5.5%
Johnson County, GA 13,232 8.0%
Wheeler County, GA 12,996 7.5%
Bullock County, AL 12,260 3.5%
Clay County, GA 11,992 11.2%
Chattahoochee County, GA 11,730 8.9%
Tallapoosa County, AL 11,722 2.9%
Worth County, GA 11,636 3.7%
Decatur County, GA 11,246 3.5%
Twiggs County, GA 11,033 5.1%
Allendale County, SC 10,625 2.8%
Ben Hill County, GA 10,072 7.1%
Bibb County, GA 9,750 6.2%
Washington County, FL 9,620 2.5%
Jeff Davis County, GA 9,175 4.3%
Candler County, GA 8,620 6.4%
Dooly County, GA 8,013 3.6%
Appling County, GA 7,590 2.3%
Johnston County, NC 7,496 1.6%
Wilkinson County, GA 7,211 2.9%
Webster County, GA 7,182 6.3%
Jefferson County, GA 7,118 2.4%
Glascock County, GA 7,028 8.6%
Marlboro County, SC 6,807 2.3%
Coffee County, GA 6,746 1.8%
Colquitt County, GA 6,732 2.2%
Houston County, AL 6,633 2.0%
Tift County, GA 6,506 4.2%
Tattnall County, GA 6,124 2.2%
Darlington County, SC 6,009 1.8%
Walton County, FL 5,691 0.8%

Septic absorption fields

NRCS rating, share of Cowarts acres

Not limited 7%
Somewhat limited 55%
Very limited 37%
Septic tank absorption field rating across mapped Cowarts acres. Scale 0 to 100% of mapped land.
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Septic tank absorption field rating across mapped Cowarts acres.
CategoryShare of acres
Not limited7.4%
Somewhat limited55.2%
Very limited37.4%

Drainage, water table and flooding

Share of Cowarts acres

Depth to seasonal high water table
About 3.6 feet (43 in) (median where reported).
Flooding
Not mapped as flooding on most acres.
Slope
Typically 3–19% (median 7%).
Topsoil organic matter
Median 1.2%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 97%
Moderately well drained 3%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Cowarts acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Cowarts acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained97.2%
Moderately well drained2.8%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) <1%
B: moderate infiltration 23%
C: slow infiltration 77%
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 Cowarts acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Cowarts acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.1%
B: moderate infiltration22.8%
C: slow infiltration77.1%
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%

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 Cowarts (component kind "Series") in SSURGO: 1,166,473 acres.
Method
Shares are by mapped acres of Cowarts components. The profile comes from the single largest Cowarts component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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