County soil summary

Soil types in Pasco County, Florida

The most widespread soils are Tavares, Pomona and Sellers; the most common drainage class is poorly drained (30% of the land), and typical topsoil pH is 5.3.

Mapped soil survey data 479,000 acres of mapped land · 70 named soil series

Well or moderately well drained
31%
of land · state 24%
Typical topsoil pH
5.3
strongly acidic · state 5.3
Septic fields very limited
93%
of land · state 87%
Subject to flooding
8%
of land, any frequency · state 16%

Most common soils in Pasco County

Share of mapped land

A county is a patchwork of many soils. These 8 cover 49% of the mapped land; 70 named soil series are mapped here in all.

Most common soils in Pasco County by share of mapped land
Soil Share of land Drainage Topsoil pH
Tavares 8.6% Moderately well drained 5.0
Pomona 7.1% Poorly drained 4.6
Sellers 6.7% Very poorly drained 4.6
Candler 6.4% Excessively drained 5.3
Smyrna 6.0% Poorly drained 5.5
Adamsville 5.4% Somewhat poorly drained 5.7
Chobee 4.8% Very poorly drained 6.7
Basinger 4.3% Poorly drained 5.3

Drainage and pH for a series are its typical values across all its mapped acres nationwide. A dash means the row is not a soil series.

What this means

What the soils in Pasco County mean for gardens, lawns and septic systems

For your garden

Typical topsoil in Pasco County is strongly acidic: pH 5.3 (most land between 4.6 and 6.1). 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 92% of the land. 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 (71% of the land).

66% of the land 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 your lawn and yard

On 63% of the land, 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 51% of the land, 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 93% of the land in Pasco County very limited, 4% somewhat limited and 0% not limited (3% not rated, such as urban land, pits or water).

Statewide, 87% of the land is very limited, so Pasco County is more restrictive than typical.

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.

Flooding is mapped on 8% of the land (<1% occasional, 7% frequent).

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.

Drainage

How long the soil stays wet

The most common drainage class is poorly drained (30%). 31% of the land is moderately well drained or better, compared with 24% across Florida.

Excessively drained 11%
Somewhat excessively drained <1%
Well drained 7%
Moderately well drained 13%
Somewhat poorly drained 15%
Poorly drained 30%
Very poorly drained 22%
Not rated 3%
Natural drainage class, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
Show as a table
Natural drainage class, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
Excessively drained10.8%8.3%
Somewhat excessively drained0.2%1.3%
Well drained6.8%7.7%
Moderately well drained13.0%6.3%
Somewhat poorly drained14.8%8.1%
Poorly drained29.6%35.3%
Very poorly drained21.7%26.0%
Not rated3.1%7.1%

Septic absorption fields

NRCS rating for conventional drain fields

The rating looks at the soil from 24 to 60 inches deep: permeability, depth to a seasonal water table or bedrock, flooding and slope. “Very limited” means at least one feature is unfavorable enough that a conventional field is hard to make work.

Not limited 0%
Somewhat limited 4%
Very limited 93%
Not rated 3%
Septic tank absorption field rating, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
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Septic tank absorption field rating, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
Not limited0.0%0.1%
Somewhat limited4.1%5.3%
Very limited92.7%87.4%
Not rated3.2%7.2%

Rain, runoff and water table

Hydrologic soil group, flooding, seasonal water table

Hydrologic soil group

How fast rain soaks in when the soil is already wet. Group A soaks in fastest, D slowest.

A: fast infiltration (mostly sandy or gravelly) 33%
B: moderate infiltration <1%
C: slow infiltration <1%
D: very slow infiltration (clayey, shallow or wet) <1%
A/D: D as is, A if drained 42%
B/D: D as is, B if drained 10%
C/D: D as is, C if drained 10%
Not rated 3%
Hydrologic soil group, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
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Hydrologic soil group, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
A: fast infiltration (mostly sandy or gravelly)33.4%22.1%
B: moderate infiltration0.7%3.6%
C: slow infiltration0.1%1.8%
D: very slow infiltration (clayey, shallow or wet)0.8%2.5%
A/D: D as is, A if drained42.1%39.8%
B/D: D as is, B if drained9.6%13.3%
C/D: D as is, C if drained10.1%10.0%
Not rated3.2%6.9%

Flooding

No flooding 90%
Rare or very rare <1%
Occasional <1%
Frequent or very frequent 7%
Not reported 2%
Most frequent flooding class in any month, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
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Most frequent flooding class in any month, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
No flooding89.9%78.5%
Rare or very rare0.2%1.2%
Occasional0.9%2.0%
Frequent or very frequent6.7%13.1%
Not reported2.4%5.2%

Seasonal high water table

Within 18 inches at some time of year 51%
18 inches to 3.3 feet 18%
Deeper than 3.3 feet or none reported 28%
Not reported 2%
Shallowest depth to a saturated zone in any month, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
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Shallowest depth to a saturated zone in any month, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
Within 18 inches at some time of year51.2%62.3%
18 inches to 3.3 feet18.1%8.8%
Deeper than 3.3 feet or none reported28.3%24.4%
Not reported2.4%4.5%

Topsoil pH and texture

First mineral layer of each soil

Typical topsoil pH is 5.3 (strongly acidic); 80% of rated land falls between 4.6 and 6.1. Median topsoil organic matter is 2.1%.

Strongly acidic (below 5.5) 64%
Moderately to slightly acidic (5.5–6.4) 21%
Near neutral (6.5–7.3) 7%
Alkaline (7.4 and up) <1%
Not reported 7%
Topsoil pH band, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
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Topsoil pH band, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
Strongly acidic (below 5.5)64.2%53.6%
Moderately to slightly acidic (5.5–6.4)21.0%19.0%
Near neutral (6.5–7.3)7.3%4.6%
Alkaline (7.4 and up)0.2%3.6%
Not reported7.3%19.2%

Texture

Sandy 92%
Loamy (loam, silt loam and similar) <1%
Clayey (40%+ clay) 0%
Organic (muck or peat) 4%
Not reported (rock, urban land, etc.) 3%
Topsoil texture group, share of mapped land in Pasco County. Scale 0 to 100% of mapped land.
Show as a table
Topsoil texture group, share of mapped land in Pasco County.
CategoryPasco CountyFlorida
Sandy91.8%74.9%
Loamy (loam, silt loam and similar)0.9%5.1%
Clayey (40%+ clay)0.0%0.7%
Organic (muck or peat)4.1%12.4%
Not reported (rock, urban land, etc.)3.2%6.9%

Most common surface textures: fine sand 71% · sand 8% · mucky loamy fine sand 7% · fine sandy loam 5% · muck 4%.

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
Pasco County, Florida (FIPS 12101): 478,925 acres of mapped land, 12,875 acres of open water excluded. State comparisons pool all mapped land in Florida.
Method
Shares are by mapped land area: each map unit’s acres in the county times each soil component’s percentage. Open water is excluded. Topsoil values use the first mineral horizon of each component. Full methodology.

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