Cadiz, Ohio
Inside Cadiz's city limits, a shallow water table limits basements on 26% of mapped land. Shrink-swell clay limits houses without basements on 58%, the highest of 9 cities in Harrison County.
That water-table share is close to Harrison County's 29%. FEMA's flood data list no flood losses since 2016 in ZIP code 43907 overlapping the city. Of its 1,511 homes, 72% were built before 1980; the median dates from 1956.
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 1 overlapping ZIP
of homes built before 1980
Basement waterproofing in Cadiz
Basement waterproofing in Cadiz: a shallow water table limits basements on 26% of Cadiz's mapped land.
About 1,200 of Cadiz's 1,511 homes are detached houses.
Soil under Cadiz city limits
| Expansive clay (limits slab homes) | 57.7% |
| High water table (limits basements) | 26.4% |
| Septic fields very limited | 94.9% |
| Clay swell (LEP, by area) | 4.3% |
| High-swell land (LEP 6%+) | 16.4% |
| Mapped soil | 5,728 acres |
What the numbers mean here
Clay swell averages a linear extensibility of 4.3% by land area here, and 16% of the land reaches USDA's high class (6% or more). Clay like that swells when wet and shrinks when dry, under 58% of the mapped land.
On 26% of Cadiz's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 95% 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 Cadiz. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43907 | 100% | 0 | $0 |
Homes in Cadiz
| Housing units | 1,511 |
| Median year built | 1956 |
| Built before 1980 | 72% |
| Built 2000 or later | 8% |
| Owner-occupied | 61% |
| Median value, owner-occupied | $119,300 |
| Single-family detached | 79% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| New Athens | 5 mi | 29% | 3% |
| Adena | 7 mi | 25% | 28% |
| Hopedale | 7 mi | 20% | 56% |
| Harrisville | 8 mi | 25% | 59% |
| Jewett | 8 mi | under 1% | 83% |
| Flushing | 8 mi | 21% | 13% |
| Holloway | 10 mi | 21% | 22% |
| Deersville | 11 mi | 3% | 5% |
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