Soil series profile

Immokalee soil series

Immokalee is a poorly drained soil with a fine sand surface, mapped on 930,044 acres in 34 counties in FL. Hydrologic group B/D.

#208 by mapped area sandy Arenic Alaquods (Spodosols)

Drainage class
Poorly drained
>99% of mapped acres
Hydrologic group
B/D
96% of mapped acres
Typical topsoil pH
4.8
very strongly acidic · range 4.5–4.8
Mapped area
930k
acres in 34 counties, 1 state

Typical Immokalee profile

Texture and pH by depth

Typical Immokalee soil profile by depth 0 in 20 in 40 in 60 in 0–6 in · A · pH 4.8 · 1% clay Fine sand 6–35 in · E · pH 4.8 · 1% clay Fine sand 35–54 in · Bh · pH 4.8 · 2% clay Fine sand 54–80 in · BC · pH 4.8 · 3% clay Fine sand
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 Immokalee horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–6 in (A) Fine sand 4.8 1% 98% 1.5%
6–35 in (E) Fine sand 4.8 1% 99% 0.5%
35–54 in (Bh) Fine sand 4.8 2% 97% 3.5%
54–80 in (BC) Fine sand 4.8 3% 96% 0.25%

Representative values from the most extensive Immokalee map unit (Immokalee fine sand, 0 to 2 percent slopes, survey area FL093). 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 Immokalee soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Immokalee soils is very strongly acidic: pH 4.8 (most land between 4.5 and 4.8). 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 100% of mapped Immokalee 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 fine sand (57% of mapped Immokalee acres).

100% of mapped Immokalee acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.

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.

A seasonal high water table comes within 18 inches of the surface on 100% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.

For a septic system

For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Immokalee 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 Immokalee soil is found

Mapped acres

Immokalee is mapped in Florida.

Counties with the most mapped Immokalee soil
County Acres Share of county land
Okeechobee County, FL 103,552 21.0%
Glades County, FL 96,035 19.5%
Highlands County, FL 77,334 11.7%
Osceola County, FL 75,396 8.7%
Hendry County, FL 62,475 8.4%
DeSoto County, FL 48,442 11.9%
Collier County, FL 42,068 5.6%
Lee County, FL 37,833 7.5%
Polk County, FL 31,178 2.7%
Volusia County, FL 30,800 4.3%
Palm Beach County, FL 29,087 2.3%
Brevard County, FL 27,894 3.5%
Charlotte County, FL 27,527 6.2%
Lake County, FL 23,811 3.9%
Hardee County, FL 21,477 5.3%
Orange County, FL 20,749 3.6%
St. Johns County, FL 19,676 5.0%
Hillsborough County, FL 19,507 2.9%
Broward County, FL 19,489 3.9%
Martin County, FL 18,218 5.2%
Indian River County, FL 15,594 4.6%
Manatee County, FL 10,396 2.1%
St. Lucie County, FL 9,811 2.6%
Putnam County, FL 9,644 2.1%
Flagler County, FL 9,597 3.1%
Levy County, FL 9,182 1.2%
Citrus County, FL 7,864 1.9%
Seminole County, FL 6,732 3.4%
Pinellas County, FL 5,338 2.5%
Marion County, FL 4,752 0.4%
Sumter County, FL 3,945 1.1%
Pasco County, FL 3,417 0.7%
Sarasota County, FL 866 0.2%
Hernando County, FL 355 0.1%

Septic absorption fields

NRCS rating, share of Immokalee acres

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

Drainage, water table and flooding

Share of Immokalee acres

Depth to seasonal high water table
About 1.0 feet (12 in) (median where reported); within 18 inches on 100% of acres.
Flooding
Not mapped as flooding on most acres.
Slope
Typically 1–1% (median 1%).
Topsoil organic matter
Median 1.5%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 0%
Somewhat poorly drained 0%
Poorly drained >99%
Very poorly drained <1%
Drainage class across mapped Immokalee acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Immokalee acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained0.0%
Poorly drained99.8%
Very poorly drained0.2%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 0%
D: very slow infiltration (clayey, shallow or wet) 0%
A/D: D as is, A if drained 4%
B/D: D as is, B if drained 96%
C/D: D as is, C if drained 0%
Hydrologic soil group across mapped Immokalee acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Immokalee acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration0.0%
D: very slow infiltration (clayey, shallow or wet)0.0%
A/D: D as is, A if drained4.4%
B/D: D as is, B if drained95.6%
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 Immokalee (component kind "Series") in SSURGO: 930,044 acres.
Method
Shares are by mapped acres of Immokalee components. The profile comes from the single largest Immokalee component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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