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Harrisville, Ohio
Inside Harrisville's city limits, a shallow water table limits basements on 59% of mapped land, the 4th-highest of 9 cities in Harrison County. Shrink-swell clay limits houses without basements on 25%, the 3rd-highest of 9 cities in Harrison County.
That water-table share is above Harrison County's 29%. FEMA's flood data list 2 flood losses since 2016 in the 3 ZIP codes overlapping the city.
Data as of October 13, 2026 · sources · in Harrison County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 3 overlapping ZIPs
Basement waterproofing in Harrisville
Basement waterproofing in Harrisville: a shallow water table limits basements on 59% of Harrisville's mapped land, and the 3 ZIP codes overlapping Harrisville logged 2 FEMA flood losses since 2016.
Soil under Harrisville city limits
| Expansive clay (limits slab homes) | 25.5% |
| High water table (limits basements) | 58.5% |
| Septic fields very limited | 93.1% |
| Clay swell (LEP, by area) | 3.6% |
| High-swell land (LEP 6%+) | 12.2% |
| Mapped soil | 97 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 3.6% by land area here, and 12% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 25% of the mapped land.
On 59% of Harrisville's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 93% of the land very limited for septic absorption fields.
Drought in Harrison County
0% of Harrison 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 Harrisville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43974 | 50% | 0 | $0 |
| 43901 | 35% | 2 | $6,366 |
| 43907 | 15% | 0 | $0 |
Homes
Harrisville 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 |
|---|---|---|---|
| Adena | 2 mi | 25% | 28% |
| Mount Pleasant | 5 mi | 19% | 13% |
| New Athens | 6 mi | 29% | 3% |
| Dillonvale | 6 mi | 17% | 21% |
| St. Clairsville | 7 mi | 37% | 41% |
| Cadiz | 8 mi | 58% | 26% |
| Yorkville | 10 mi | 1% | 2% |
| Flushing | 10 mi | 21% | 13% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status