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Seaman, Ohio
Inside Seaman's city limits, a shallow water table limits basements on 75% of mapped land, the highest of 5 cities in Adams County. Shrink-swell clay limits houses without basements on 0%.
That water-table share is above Adams County's 27%. FEMA's flood data list no flood losses since 2016 in ZIP code 45679 overlapping the city. Of its 490 homes, 61% were built before 1980; the median dates from 1964.
Data as of October 13, 2026 · sources · in Adams 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 Seaman
Basement waterproofing in Seaman: a shallow water table limits basements on 75% of Seaman's mapped land, more than in 59% of Ohio cities.
About 400 of Seaman's 490 homes are detached houses.
Soil under Seaman city limits
| Expansive clay (limits slab homes) | 0.0% |
| High water table (limits basements) | 74.8% |
| Septic fields very limited | 96.2% |
| Clay swell (LEP, by area) | 4.9% |
| High-swell land (LEP 6%+) | 31.4% |
| Mapped soil | 684 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Jonesboro | 32% | n/a |
| Rossmoyne | 29% | 96% |
| Jessup | 21% | n/a |
| Cincinnati | 7% | n/a |
| Westboro | 6% | n/a |
| Schaffer | 3% | n/a |
What the numbers mean here
On 75% of Seaman's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 96% of the land very limited for septic absorption fields.
Drought in Adams County
0% of Adams 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 Seaman. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45679 | 100% | 0 | $0 |
Homes in Seaman
| Housing units | 490 |
| Median year built | 1964 |
| Built before 1980 | 61% |
| Built 2000 or later | 11% |
| Owner-occupied | 66% |
| Median value, owner-occupied | $134,600 |
| Single-family detached | 75% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Winchester | 5 mi | 0% | 63% |
| Peebles | 9 mi | 40% | 34% |
| West Union | 10 mi | 41% | 41% |
| Mowrystown | 13 mi | 1% | 80% |
| Russellville | 13 mi | 10% | 86% |
| Sardinia | 14 mi | 16% | 81% |
| Sinking Spring | 14 mi | under 1% | 12% |
| Manchester | 17 mi | under 1% | 37% |
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