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Sinking Spring, Ohio
Inside Sinking Spring's city limits, a shallow water table limits basements on 12% of mapped land. Shrink-swell clay limits houses without basements on under 1%.
That water-table share is below Highland County's 66%. FEMA's flood data list no flood losses since 2016 in ZIP code 45172 overlapping the city. Of its 101 homes, 86% were built before 1980; the median dates from 1971.
Data as of October 13, 2026 · sources · in Highland 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 Sinking Spring
Basement waterproofing in Sinking Spring: a shallow water table limits basements on 12% of Sinking Spring's mapped land.
About 100 of Sinking Spring's 101 homes are detached houses.
Soil under Sinking Spring city limits
| Expansive clay (limits slab homes) | 0.3% |
| High water table (limits basements) | 11.5% |
| Septic fields very limited | 95.5% |
| Clay swell (LEP, by area) | 4.3% |
| High-swell land (LEP 6%+) | 0.3% |
| Mapped soil | 299 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Opequon | 34% | n/a |
| Bratton | 25% | n/a |
| Trappist | 11% | n/a |
| Nicholson | 5% | n/a |
| Gasconade | 5% | n/a |
| Shoals | 5% | n/a |
What the numbers mean here
USDA rates 95% of the land very limited for septic absorption fields.
With shrink-swell clay on under 1% and a shallow water table on 12% of the land, the soil survey points to neither problem across most of Sinking Spring; conditions still vary lot by lot.
Drought in Highland County
0% of Highland 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 Sinking Spring. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45172 | 95% | 0 | $0 |
Homes in Sinking Spring
| Housing units | 101 |
| Median year built | 1971 |
| Built before 1980 | 86% |
| Built 2000 or later | 9% |
| Owner-occupied | 94% |
| Median value, owner-occupied | $151,600 |
| Single-family detached | 91% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Peebles | 9 mi | 40% | 34% |
| Bainbridge | 12 mi | 1% | 14% |
| Rarden | 13 mi | 1% | 79% |
| Seaman | 14 mi | 0% | 75% |
| Hillsboro | 15 mi | under 1% | 40% |
| Winchester | 17 mi | 0% | 63% |
| Otway | 18 mi | under 1% | 48% |
| South Salem | 19 mi | 12% | 87% |
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