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Centerville (Thurman), Ohio
Inside Centerville (Thurman)'s city limits, a shallow water table limits basements on 79% of mapped land, the highest of 6 cities in Gallia County. Shrink-swell clay limits houses without basements on 1%.
That water-table share is above Gallia County's 26%. FEMA's flood data list no flood losses since 2016 in ZIP code 45685 overlapping the city.
Data as of October 13, 2026 · sources · in Gallia County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
Basement waterproofing in Centerville (Thurman)
Basement waterproofing in Centerville (Thurman): a shallow water table limits basements on 79% of Centerville (Thurman)'s mapped land, more than in 65% of Ohio cities.
Soil under Centerville (Thurman) city limits
| Expansive clay (limits slab homes) | 0.9% |
| High water table (limits basements) | 79.5% |
| Septic fields very limited | 97.9% |
| Clay swell (LEP, by area) | 2.2% |
| High-swell land (LEP 6%+) | 0.9% |
| Mapped soil | 61 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Omulga | 39% | 99% |
| Pope | 12% | n/a |
| Stokly | 9% | n/a |
| Wyatt | 6% | n/a |
| Philo | 6% | n/a |
| Piopolis | 5% | n/a |
What the numbers mean here
On 79% of Centerville (Thurman)'s mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 98% of the land very limited for septic absorption fields.
Drought in Gallia County
0% of Gallia County is in drought (D1 or worse) on the October 13, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap Centerville (Thurman). ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45685 | 100% | 0 | $0 |
Homes
Centerville (Thurman) has fewer than 100 housing units in the ACS 2020-2024 estimates, too few for reliable shares.
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Rio Grande | 4 mi | 21% | 54% |
| Oak Hill | 7 mi | 13% | 77% |
| Vinton | 8 mi | 10% | 41% |
| Wilkesville | 14 mi | 13% | 76% |
| Jackson | 15 mi | 10% | 70% |
| Gallipolis | 15 mi | 15% | 33% |
| Wellston | 16 mi | 15% | 77% |
| South Webster | 16 mi | 6% | 67% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status