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Patterson, Ohio
Inside Patterson's city limits, a shallow water table limits basements on 100% of mapped land, the 2nd-highest of 8 cities in Hardin County. Shrink-swell clay limits houses without basements on 10%.
That water-table share is close to Hardin County's 97%. FEMA's flood data list 2 flood losses since 2016 in ZIP code 45843 overlapping the city.
Data as of October 13, 2026 · sources · in Hardin County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
Basement waterproofing in Patterson
Basement waterproofing in Patterson: a shallow water table limits basements on 100% of Patterson's mapped land, more than in 98% of Ohio cities, and the ZIP code overlapping Patterson logged 2 FEMA flood losses since 2016.
Soil under Patterson city limits
| Expansive clay (limits slab homes) | 10.0% |
| High water table (limits basements) | 100.0% |
| Septic fields very limited | 100.0% |
| Clay swell (LEP, by area) | 4.6% |
| High-swell land (LEP 6%+) | under 0.1% |
| Mapped soil | 58 acres |
What the numbers mean here
On 100% of Patterson'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 Hardin County
0% of Hardin 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 Patterson. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45843 | 100% | 2 | $29,277 |
Homes
Patterson has fewer than 100 housing units in the ACS 2020-2024 estimates, too few for reliable shares.
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Forest | 2 mi | 22% | 98% |
| Kirby | 6 mi | 44% | 100% |
| Dunkirk | 6 mi | 15% | 76% |
| Wharton | 6 mi | 43% | over 99% |
| Mount Blanchard | 8 mi | 6% | 88% |
| Marseilles | 9 mi | 6% | 96% |
| Arlington | 10 mi | 39% | 99% |
| Kenton | 10 mi | 14% | 71% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026). Methods · Data status