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Ashville, Ohio
Inside Ashville's city limits, a shallow water table limits basements on 80% of mapped land, the 3rd-highest of 8 cities in Pickaway County. Shrink-swell clay limits houses without basements on 18%, the 3rd-highest of 8 cities in Pickaway County.
That water-table share is above Pickaway County's 72%. FEMA's flood data list 2 flood losses since 2016 in ZIP code 43103 overlapping the city. Of its 1,878 homes, 48% were built before 1980; the median dates from 1983.
Data as of October 13, 2026 · sources · in Pickaway County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
of homes built before 1980
Basement waterproofing in Ashville
Basement waterproofing in Ashville: a shallow water table limits basements on 80% of Ashville's mapped land, more than in 66% of Ohio cities, and the ZIP code overlapping Ashville logged 2 FEMA flood losses since 2016.
About 1,200 of Ashville's 1,878 homes are detached houses.
Soil under Ashville city limits
| Expansive clay (limits slab homes) | 17.7% |
| High water table (limits basements) | 80.5% |
| Septic fields very limited | 97.8% |
| Clay swell (LEP, by area) | 4.3% |
| High-swell land (LEP 6%+) | 2.8% |
| Mapped soil | 1,586 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 4.3% by land area here, and 3% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 18% of the mapped land.
On 80% of Ashville'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 Pickaway County
0% of Pickaway 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 Ashville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43103 | 99% | 2 | $0 |
Homes in Ashville
| Housing units | 1,878 |
| Median year built | 1983 |
| Built before 1980 | 48% |
| Built 2000 or later | 27% |
| Owner-occupied | 54% |
| Median value, owner-occupied | $291,000 |
| Single-family detached | 64% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| South Bloomfield | 2 mi | 3% | 30% |
| Commercial Point | 6 mi | 12% | 85% |
| Lockbourne | 6 mi | under 1% | 35% |
| Circleville | 9 mi | 5% | 34% |
| Darbyville | 9 mi | 1% | 41% |
| Lithopolis | 10 mi | 6% | 81% |
| Obetz | 10 mi | 10% | 67% |
| Groveport | 10 mi | 12% | 65% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status