Soil series profile

Crete soil series

Crete is a moderately well drained soil with a silty clay loam surface, mapped on 2,040,955 acres in 52 counties across 2 states. Hydrologic group C.

#32 by mapped area fine Pachic Udertic Argiustolls (Mollisols)

Drainage class
Moderately well drained
100% of mapped acres
Hydrologic group
C
>99% of mapped acres
Typical topsoil pH
5.7
moderately acidic · range 5.7–5.7
Mapped area
2.0M
acres in 52 counties, 2 states

Typical Crete profile

Texture and pH by depth

Typical Crete soil profile by depth 0 in 20 in 40 in 60 in 0–6 in · Ap · pH 5.7 · 30% clay Silty clay loam 6–12 in · BA · pH 6.1 · 36% clay Silty clay loam 12–23 in · Bt1 · pH 6.5 · 47% clay Silty clay 23–31 in · Bt2 · pH 7.1 · 42% clay Silty clay 31–39 in · Bk · pH 7.6 · 32% clay Silty clay loam 39–79 in · C · pH 7.8 · 27% clay Silty 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).
Show as a table
Typical Crete horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–6 in (Ap) Silty clay loam 5.7 30% 7% 3%
6–12 in (BA) Silty clay loam 6.1 36% 5% 2.5%
12–23 in (Bt1) Silty clay 6.5 47% 4% 1.5%
23–31 in (Bt2) Silty clay 7.1 42% 4% 0.8%
31–39 in (Bk) Silty clay loam 7.6 32% 5% 0.5%
39–79 in (C) Silty clay loam 7.8 27% 6% 0.3%

Representative values from the most extensive Crete map unit (Crete silty clay loam, 1 to 3 percent slopes, survey area KS201). 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 Crete soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Crete soils is moderately acidic: pH 5.7. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.

Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Crete acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (76% of mapped Crete acres).

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

For lawns and yards

On 100% 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 100% of the acres in mapped Crete soils very limited, 0% 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 Crete soil is found

Mapped acres

Crete is mapped in Kansas and Nebraska.

Counties with the most mapped Crete soil
County Acres Share of county land
Washington County, KS 239,959 41.8%
McPherson County, KS 174,803 30.4%
Fillmore County, NE 158,691 43.1%
Clay County, KS 152,307 36.9%
Republic County, KS 109,291 23.8%
Saline County, NE 103,568 28.2%
Ottawa County, KS 96,396 21.0%
Clay County, NE 92,362 25.2%
Thayer County, NE 91,587 25.0%
Rice County, KS 91,086 19.6%
Jefferson County, NE 83,533 22.9%
Dickinson County, KS 83,409 15.4%
Barton County, KS 78,937 14.0%
Saline County, KS 63,855 13.9%
Nuckolls County, NE 62,726 17.1%
Cloud County, KS 57,066 12.5%
Ellsworth County, KS 50,896 11.1%
Hamilton County, NE 32,020 9.2%
Russell County, KS 27,658 4.9%
Harvey County, KS 21,841 6.3%
Geary County, KS 20,595 8.4%
Adams County, NE 20,198 5.6%
York County, NE 17,121 4.7%
Lancaster County, NE 15,710 2.9%
Seward County, NE 12,922 3.5%
Jewell County, KS 8,875 1.5%
Mitchell County, KS 8,803 2.0%
Riley County, KS 8,690 2.2%
Reno County, KS 8,646 1.1%
Polk County, NE 8,165 2.9%
Ellis County, KS 7,844 1.4%
Butler County, NE 7,101 1.9%
Lincoln County, KS 5,040 1.1%
Webster County, NE 4,252 1.2%
Marshall County, KS 4,178 0.7%
Marion County, KS 3,348 0.6%
Phelps County, NE 2,718 0.8%
Hall County, NE 1,236 0.4%
Pawnee County, NE 1,161 0.4%
Kearney County, NE 809 0.2%
Morris County, KS 536 0.1%
Harlan County, NE 391 0.1%
Franklin County, NE 174 0.0%
Brown County, KS 166 0.0%
Sedgwick County, KS 145 0.0%
Shawnee County, KS 70 0.0%
Pottawatomie County, KS 16 0.0%
Gosper County, NE 13 0.0%
Gage County, NE 12 0.0%
Nemaha County, KS 11 0.0%
Jackson County, KS 10 0.0%
Butler County, KS 10 0.0%

Septic absorption fields

NRCS rating, share of Crete acres

Not limited 0%
Somewhat limited 0%
Very limited 100%
Septic tank absorption field rating across mapped Crete acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped Crete acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited100.0%

Drainage, water table and flooding

Share of Crete acres

Depth to seasonal high water table
About 6 inches (median where reported); within 18 inches on <1% of acres.
Flooding
Not mapped as flooding on most acres.
Slope
Typically 1–5% (median 2%).
Topsoil organic matter
Median 3%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 100%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Crete acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Crete acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained100.0%
Somewhat poorly drained0.0%
Poorly drained0.0%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration >99%
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 <1%
Hydrologic soil group across mapped Crete acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Crete acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration99.8%
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 drained0.2%

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 Crete (component kind "Series") in SSURGO: 2,040,955 acres.
Method
Shares are by mapped acres of Crete components. The profile comes from the single largest Crete component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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