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Blanchester, Ohio
Inside Blanchester's city limits, a shallow water table limits basements on 94% of mapped land, the 3rd-highest of 8 cities in Clinton County. Shrink-swell clay limits houses without basements on 1%.
That water-table share is close to Clinton County's 93%. FEMA's flood data list 3 flood losses since 2016 in ZIP code 45107 overlapping the city. Of its 1,890 homes, 76% were built before 1980; the median dates from 1964.
Data as of October 13, 2026 · sources · in Clinton 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 Blanchester
Basement waterproofing in Blanchester: a shallow water table limits basements on 94% of Blanchester's mapped land, more than in 84% of Ohio cities, and the ZIP code overlapping Blanchester logged 3 FEMA flood losses since 2016.
About 1,400 of Blanchester's 1,890 homes are detached houses.
Soil under Blanchester city limits
| Expansive clay (limits slab homes) | 0.7% |
| High water table (limits basements) | 94.1% |
| Septic fields very limited | 95.8% |
| Clay swell (LEP, by area) | 4.3% |
| High-swell land (LEP 6%+) | 12.9% |
| Mapped soil | 2,675 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Westboro | 25% | n/a |
| Jonesboro | 19% | n/a |
| Clermont | 16% | n/a |
| Schaffer | 14% | n/a |
| Rossmoyne | 13% | 96% |
| Blanchester | 3% | n/a |
What the numbers mean here
On 94% of Blanchester'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 Clinton County
0% of Clinton 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 Blanchester. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45107 | 100% | 3 | $39,649 |
Homes in Blanchester
| Housing units | 1,890 |
| Median year built | 1964 |
| Built before 1980 | 76% |
| Built 2000 or later | 13% |
| Owner-occupied | 63% |
| Median value, owner-occupied | $195,700 |
| Single-family detached | 76% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Midland | 3 mi | 1% | 100% |
| Butlerville | 6 mi | 6% | 77% |
| Clarksville | 7 mi | 0% | 41% |
| Pleasant Plain | 8 mi | 2% | 100% |
| Fayetteville | 8 mi | 1% | 87% |
| Martinsville | 9 mi | 5% | 79% |
| Morrow | 9 mi | 11% | 16% |
| Lynchburg | 11 mi | 1% | 69% |
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