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Greenfield, Ohio
Inside Greenfield's city limits, a shallow water table limits basements on 53% of mapped land, the 5th-highest of 7 cities in Highland County. Shrink-swell clay limits houses without basements on 1%, the 2nd-highest of 7 cities in Highland County.
That water-table share is below Highland County's 66%. FEMA's flood data list 1 flood losses since 2016 in ZIP code 45123 overlapping the city. Of its 1,908 homes, 82% were built before 1980; the median dates from 1954.
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 Greenfield
Basement waterproofing in Greenfield: a shallow water table limits basements on 53% of Greenfield's mapped land, and the ZIP code overlapping Greenfield logged 1 FEMA flood losses since 2016.
About 1,300 of Greenfield's 1,908 homes are detached houses.
Soil under Greenfield city limits
| Expansive clay (limits slab homes) | 1.3% |
| High water table (limits basements) | 53.0% |
| Septic fields very limited | 81.3% |
| Clay swell (LEP, by area) | 4.2% |
| High-swell land (LEP 6%+) | under 0.1% |
| Urban land, not rated | 15.2% |
| Mapped soil | 1,336 acres |
What the numbers mean here
On 53% of Greenfield's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 81% of the land very limited for septic absorption fields.
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 Greenfield. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45123 | 100% | 1 | $0 |
Homes in Greenfield
| Housing units | 1,908 |
| Median year built | 1954 |
| Built before 1980 | 82% |
| Built 2000 or later | 4% |
| Owner-occupied | 52% |
| Median value, owner-occupied | $113,700 |
| Single-family detached | 66% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| South Salem | 4 mi | 12% | 87% |
| Leesburg | 9 mi | 2% | 61% |
| Bainbridge | 11 mi | 1% | 14% |
| Highland | 11 mi | 1% | 67% |
| Frankfort | 12 mi | 7% | 44% |
| Washington Court House | 13 mi | 30% | 96% |
| Hillsboro | 15 mi | under 1% | 40% |
| New Holland | 15 mi | 23% | 76% |
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