Soil series profile
Leon soil series
Leon is a poorly drained soil with a fine sand surface, mapped on 1,116,217 acres in 89 counties across 7 states. Hydrologic group A/D.
- Drainage class
- Poorly drained 96% of mapped acres
- Hydrologic group
- A/D 100% of mapped acres
- Typical topsoil pH
- 4.8 very strongly acidic · range 3.9–5.1
- Mapped area
- 1.1M acres in 89 counties, 7 states
Typical Leon profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–7 in (A) | Fine sand | 5.1 | 3% | 95% | 2.25% |
| 7–11 in (E) | Fine sand | 5.1 | 2% | 95% | 0.25% |
| 11–26 in (Bh) | Loamy fine sand | 5.1 | 5% | 85% | 3% |
| 26–59 in (Eg) | Loamy fine sand | 5.1 | 2% | 85% | 0.25% |
| 59–74 in (EBh) | Loamy fine sand | 5.1 | 4% | 85% | 2% |
| 74–80 in (B'h) | Loamy fine sand | 5.1 | 6% | 85% | 2% |

What this means
What Leon soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Leon soils is very strongly acidic: pH 4.8 (most land between 3.9 and 5.1). 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 >99% of mapped Leon 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 (55% of mapped Leon acres).
100% of mapped Leon 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 Leon 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.
Where Leon soil is found
Mapped acres
Leon is mapped in Florida, North Carolina, Georgia, South Carolina, Alabama, Virginia and Mississippi. The 60 counties with the most Leon acres:
| County | Acres | Share of county land |
|---|---|---|
| Duval County, FL | 75,771 | 15.2% |
| Taylor County, FL | 73,444 | 11.0% |
| Dixie County, FL | 66,934 | 14.4% |
| Charlton County, GA | 60,365 | 13.3% |
| Wayne County, GA | 49,560 | 12.1% |
| Nassau County, FL | 48,007 | 11.7% |
| Clay County, FL | 47,638 | 12.6% |
| Brunswick County, NC | 42,570 | 8.5% |
| Brantley County, GA | 38,348 | 14.3% |
| Bay County, FL | 37,643 | 7.6% |
| Horry County, SC | 36,614 | 5.1% |
| Bladen County, NC | 31,676 | 6.2% |
| Lafayette County, FL | 30,890 | 8.9% |
| Wakulla County, FL | 30,005 | 7.4% |
| Onslow County, NC | 27,090 | 6.1% |
| Pender County, NC | 25,752 | 5.2% |
| Baker County, FL | 25,296 | 6.8% |
| Franklin County, FL | 24,252 | 4.8% |
| Leon County, FL | 22,177 | 5.2% |
| Duplin County, NC | 21,209 | 4.5% |
| Carteret County, NC | 18,086 | 5.9% |
| McIntosh County, GA | 17,132 | 6.5% |
| Georgetown County, SC | 16,674 | 3.2% |
| Liberty County, FL | 15,596 | 2.9% |
| Walton County, FL | 14,248 | 2.0% |
| Effingham County, GA | 12,540 | 4.7% |
| New Hanover County, NC | 12,014 | 10.3% |
| Sampson County, NC | 11,715 | 2.1% |
| Columbia County, FL | 10,487 | 2.1% |
| Ware County, GA | 10,271 | 1.9% |
| Beaufort County, SC | 10,170 | 2.7% |
| Gulf County, FL | 9,718 | 2.4% |
| Charleston County, SC | 9,019 | 1.5% |
| Gilchrist County, FL | 8,742 | 3.9% |
| Jefferson County, FL | 7,765 | 2.0% |
| Columbus County, NC | 6,904 | 1.3% |
| Santa Rosa County, FL | 6,653 | 0.9% |
| Gadsden County, FL | 6,581 | 2.0% |
| Bryan County, GA | 5,560 | 2.0% |
| Baldwin County, AL | 5,434 | 0.6% |
| Craven County, NC | 5,423 | 1.4% |
| Cumberland County, NC | 5,311 | 1.4% |
| Pamlico County, NC | 5,009 | 2.6% |
| Jones County, NC | 4,555 | 1.6% |
| Okaloosa County, FL | 4,404 | 0.7% |
| Escambia County, FL | 4,399 | 1.0% |
| Beaufort County, NC | 4,373 | 0.9% |
| Colleton County, SC | 3,949 | 0.7% |
| Chatham County, GA | 3,901 | 1.4% |
| Bradford County, FL | 3,712 | 2.0% |
| Lenoir County, NC | 3,663 | 1.5% |
| Washington County, FL | 3,570 | 0.9% |
| Williamsburg County, SC | 3,179 | 0.5% |
| Camden County, GA | 2,972 | 0.7% |
| Dillon County, SC | 2,788 | 1.1% |
| Marion County, SC | 2,614 | 0.9% |
| Robeson County, NC | 2,454 | 0.4% |
| Berkeley County, SC | 2,374 | 0.3% |
| Wayne County, NC | 2,343 | 0.7% |
| Bulloch County, GA | 1,960 | 0.5% |
Septic absorption fields
NRCS rating, share of Leon acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 100.0% |
Drainage, water table and flooding
Share of Leon acres
- Depth to seasonal high water table
- About 6 inches (median where reported); within 18 inches on 100% of acres.
- Flooding
- Mapped as flooding on 2% of acres (<1% occasional, 1% frequent).
- Slope
- Typically 1–1% (median 1%).
- Topsoil organic matter
- Median 2.2%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 96.4% |
| Very poorly drained | 3.6% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| A/D: D as is, A if drained | 100.0% |
| 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 Leon (component kind "Series") in SSURGO: 1,116,217 acres.
- Method
- Shares are by mapped acres of Leon components. The profile comes from the single largest Leon component. Full methodology.