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Quincy, Ohio
Inside Quincy's city limits, a shallow water table limits basements on 82% of mapped land, higher than 67% of Ohio cities. Shrink-swell clay limits houses without basements on 7%.
That water-table share is close to Logan County's 81%. FEMA's flood data list no flood losses since 2016 in ZIP code 43343 overlapping the city. Of its 250 homes, 83% were built before 1980; the median dates from 1939 or earlier.
Data as of October 13, 2026 · sources · in Logan 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 Quincy
Basement waterproofing in Quincy: a shallow water table limits basements on 82% of Quincy's mapped land, more than in 67% of Ohio cities.
About 200 of Quincy's 250 homes are detached houses.
Soil under Quincy city limits
| Expansive clay (limits slab homes) | 7.1% |
| High water table (limits basements) | 81.5% |
| Septic fields very limited | 96.6% |
| Clay swell (LEP, by area) | 4.6% |
| High-swell land (LEP 6%+) | 8.1% |
| Mapped soil | 721 acres |
What the numbers mean here
On 82% of Quincy's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 97% of the land very limited for septic absorption fields.
Drought in Logan County
0% of Logan 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 Quincy. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43343 | 100% | 0 | $0 |
Homes in Quincy
| Housing units | 250 |
| Median year built | 1939 or earlier |
| Built before 1980 | 83% |
| Built 2000 or later | 4% |
| Owner-occupied | 71% |
| Median value, owner-occupied | $95,000 |
| Single-family detached | 80% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| De Graff | 3 mi | 5% | 55% |
| Port Jefferson | 7 mi | 2% | 30% |
| Jackson Center | 10 mi | 30% | 99% |
| Sidney | 11 mi | 8% | 59% |
| West Liberty | 11 mi | 26% | 44% |
| St. Paris | 12 mi | 21% | 99% |
| Bellefontaine | 12 mi | 7% | 60% |
| Russells Point | 13 mi | 67% | 79% |
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