County soil summary

Soil types in Houston County, Georgia

The most widespread soils are Faceville, Orangeburg and Bibb; the most common drainage class is well drained (75% of the land), and typical topsoil pH is 5.3.

Mapped soil survey data 237,000 acres of mapped land · 21 named soil series

Well or moderately well drained
82%
of land · state 69%
Typical topsoil pH
5.3
strongly acidic · state 5.3
Septic fields very limited
36%
of land · state 68%
Subject to flooding
17%
of land, any frequency · state 19%

Most common soils in Houston County

Share of mapped land

A county is a patchwork of many soils. These 8 cover 83% of the mapped land; 21 named soil series are mapped here in all.

Most common soils in Houston County by share of mapped land
Soil Share of land Drainage Topsoil pH
Faceville 22.3% Well drained 5.3
Orangeburg 15.8% Well drained 5.3
Bibb 10.9% Poorly drained 4.6
Greenville 10.4% Well drained 5.3
Lucy 8.7% Well drained 5.3
Norfolk 5.5% Well drained 4.8
Vaucluse 5.2% Well drained 5.3
Lakeland 4.2% Excessively 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 Houston County mean for gardens, lawns and septic systems

For your garden

Typical topsoil in Houston County is strongly acidic: pH 5.3 (most land between 4.6 and 5.5). 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.

Loamy topsoil (loam, silt loam and similar) covers 51% of the land: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is fine sandy loam (30% of the land).

82% of the land is moderately well to excessively drained, which suits most garden plants.

For your lawn and yard

Most land is in hydrologic groups B and C, where rain soaks in at a moderate pace.

For a septic system

For conventional septic absorption fields, NRCS rates 36% of the land in Houston County very limited, 64% somewhat limited and 0% not limited.

Statewide, 68% of the land is very limited, so Houston County is less restrictive than typical.

Flooding is mapped on 17% of the land (3% occasional, 14% 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 well drained (75%). 82% of the land is moderately well drained or better, compared with 69% across Georgia.

Excessively drained 4%
Somewhat excessively drained 0%
Well drained 75%
Moderately well drained 3%
Somewhat poorly drained 2%
Poorly drained 16%
Very poorly drained 0%
Not rated <1%
Natural drainage class, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
Show as a table
Natural drainage class, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
Excessively drained4.2%2.1%
Somewhat excessively drained0.0%3.0%
Well drained74.6%58.8%
Moderately well drained3.2%4.7%
Somewhat poorly drained2.1%7.4%
Poorly drained15.8%16.5%
Very poorly drained0.0%5.9%
Not rated0.2%1.5%

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 64%
Very limited 36%
Not rated <1%
Septic tank absorption field rating, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
Not limited0.0%0.3%
Somewhat limited63.9%30.3%
Very limited35.9%68.0%
Not rated0.2%1.5%

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) 4%
B: moderate infiltration 66%
C: slow infiltration 8%
D: very slow infiltration (clayey, shallow or wet) 6%
A/D: D as is, A if drained 0%
B/D: D as is, B if drained 11%
C/D: D as is, C if drained 4%
Not rated <1%
Hydrologic soil group, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
A: fast infiltration (mostly sandy or gravelly)4.2%10.5%
B: moderate infiltration66.3%44.5%
C: slow infiltration8.2%10.9%
D: very slow infiltration (clayey, shallow or wet)6.0%6.8%
A/D: D as is, A if drained0.0%7.4%
B/D: D as is, B if drained10.9%12.4%
C/D: D as is, C if drained4.2%5.9%
Not rated0.2%1.5%

Flooding

No flooding 83%
Rare or very rare 0%
Occasional 3%
Frequent or very frequent 14%
Not reported <1%
Most frequent flooding class in any month, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
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Most frequent flooding class in any month, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
No flooding83.3%80.5%
Rare or very rare0.0%1.2%
Occasional2.5%4.7%
Frequent or very frequent14.0%12.7%
Not reported0.2%0.9%

Seasonal high water table

Within 18 inches at some time of year 16%
18 inches to 3.3 feet 0%
Deeper than 3.3 feet or none reported 84%
Not reported 0%
Shallowest depth to a saturated zone in any month, share of mapped land in Houston 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 Houston County.
CategoryHouston CountyGeorgia
Within 18 inches at some time of year16.2%25.4%
18 inches to 3.3 feet0.0%8.6%
Deeper than 3.3 feet or none reported83.8%65.6%
Not reported0.0%0.4%

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 5.5. Median topsoil organic matter is 1.2%.

Strongly acidic (below 5.5) 86%
Moderately to slightly acidic (5.5–6.4) 14%
Near neutral (6.5–7.3) 0%
Alkaline (7.4 and up) <1%
Not reported <1%
Topsoil pH band, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
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Topsoil pH band, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
Strongly acidic (below 5.5)86.0%56.5%
Moderately to slightly acidic (5.5–6.4)13.5%40.7%
Near neutral (6.5–7.3)0.0%1.2%
Alkaline (7.4 and up)0.3%0.0%
Not reported0.2%1.6%

Texture

Sandy 49%
Loamy (loam, silt loam and similar) 51%
Clayey (40%+ clay) <1%
Organic (muck or peat) 0%
Not reported (rock, urban land, etc.) <1%
Topsoil texture group, share of mapped land in Houston County. Scale 0 to 100% of mapped land.
Show as a table
Topsoil texture group, share of mapped land in Houston County.
CategoryHouston CountyGeorgia
Sandy48.9%42.8%
Loamy (loam, silt loam and similar)50.7%53.7%
Clayey (40%+ clay)0.3%1.0%
Organic (muck or peat)0.0%1.0%
Not reported (rock, urban land, etc.)0.2%1.5%

Most common surface textures: fine sandy loam 30% · loamy fine sand 20% · loamy sand 17% · loam 10% · sand 9%.

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
Houston County, Georgia (FIPS 13153): 236,783 acres of mapped land, 1,690 acres of open water excluded. State comparisons pool all mapped land in Georgia.
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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