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Hamersville, Ohio
Inside Hamersville's city limits, a shallow water table limits basements on 100% of mapped land, the highest of 9 cities in Brown County. Shrink-swell clay limits houses without basements on 3%.
That water-table share is above Brown County's 68%. FEMA's flood data list no flood losses since 2016 in ZIP code 45130 overlapping the city. Of its 325 homes, 72% were built before 1980; the median dates from 1966.
Data as of October 13, 2026 · sources · in Brown 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 Hamersville
Basement waterproofing in Hamersville: a shallow water table limits basements on 100% of Hamersville's mapped land, more than in 98% of Ohio cities.
About 300 of Hamersville's 325 homes are detached houses.
Soil under Hamersville city limits
| Expansive clay (limits slab homes) | 2.8% |
| High water table (limits basements) | 100.0% |
| Septic fields very limited | 100.0% |
| Clay swell (LEP, by area) | 4.4% |
| High-swell land (LEP 6%+) | 5.2% |
| Mapped soil | 279 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Clermont | 54% | n/a |
| Westboro | 23% | n/a |
| Schaffer | 13% | n/a |
| Jonesboro | 4% | n/a |
| Rossmoyne | 3% | 96% |
| Blanchester | 3% | n/a |
What the numbers mean here
On 100% of Hamersville's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 100% of the land very limited for septic absorption fields.
Drought in Brown County
0% of Brown 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 Hamersville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45130 | 100% | 0 | $0 |
Homes in Hamersville
| Housing units | 325 |
| Median year built | 1966 |
| Built before 1980 | 72% |
| Built 2000 or later | 11% |
| Owner-occupied | 55% |
| Median value, owner-occupied | $165,400 |
| Single-family detached | 90% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Georgetown | 6 mi | 8% | 87% |
| Bethel | 6 mi | 2% | 64% |
| Felicity | 8 mi | under 1% | 68% |
| Mount Orab | 8 mi | 9% | 92% |
| Higginsport | 9 mi | 27% | 0% |
| Williamsburg | 10 mi | 3% | 66% |
| Russellville | 11 mi | 10% | 86% |
| Sardinia | 12 mi | 16% | 81% |
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