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Pioneer, Ohio
Inside Pioneer's city limits, a shallow water table limits basements on 89% of mapped land, higher than 77% of Ohio cities. Shrink-swell clay limits houses without basements on 21%, the 3rd-highest of 9 cities in Williams County.
That water-table share is below Williams County's 95%. FEMA's flood data list no flood losses since 2016 in ZIP code 43554 overlapping the city. Of its 543 homes, 60% were built before 1980; the median dates from 1957.
Data as of October 13, 2026 · sources · in Williams 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 Pioneer
Basement waterproofing in Pioneer: a shallow water table limits basements on 89% of Pioneer's mapped land, more than in 77% of Ohio cities.
About 300 of Pioneer's 543 homes are detached houses.
Soil under Pioneer city limits
| Expansive clay (limits slab homes) | 20.7% |
| High water table (limits basements) | 89.2% |
| Septic fields very limited | 91.1% |
| Clay swell (LEP, by area) | 4.8% |
| High-swell land (LEP 6%+) | 15.3% |
| Mapped soil | 1,455 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 4.8% by land area here, and 15% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 21% of the mapped land.
On 89% of Pioneer's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 91% of the land very limited for septic absorption fields.
Drought in Williams County
0% of Williams 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 Pioneer. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43554 | 100% | 0 | $0 |
Homes in Pioneer
| Housing units | 543 |
| Median year built | 1957 |
| Built before 1980 | 60% |
| Built 2000 or later | 11% |
| Owner-occupied | 56% |
| Median value, owner-occupied | $152,400 |
| Single-family detached | 63% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Holiday City | 4 mi | 21% | 93% |
| Montpelier | 7 mi | 13% | 94% |
| West Unity | 9 mi | 27% | 87% |
| Fayette | 11 mi | 2% | 84% |
| Stryker | 14 mi | 14% | 98% |
| Edon | 14 mi | 17% | 99% |
| Blakeslee | 14 mi | 12% | 100% |
| Bryan | 14 mi | 57% | 90% |
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