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Edison, Ohio
Inside Edison's city limits, a shallow water table limits basements on 89% of mapped land, the 4th-highest of 7 cities in Morrow County. Shrink-swell clay limits houses without basements on 13%, the highest of 7 cities in Morrow County.
That water-table share is close to Morrow County's 87%. FEMA's flood data list no flood losses since 2016 in ZIP code 43320 overlapping the city. Of its 172 homes, 81% were built before 1980; the median dates from 1946.
Data as of October 13, 2026 · sources · in Morrow 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 Edison
Basement waterproofing in Edison: a shallow water table limits basements on 89% of Edison's mapped land, more than in 76% of Ohio cities.
About 200 of Edison's 172 homes are detached houses.
Soil under Edison city limits
| Expansive clay (limits slab homes) | 13.3% |
| High water table (limits basements) | 89.0% |
| Septic fields very limited | 98.2% |
| Clay swell (LEP, by area) | 4.3% |
| High-swell land (LEP 6%+) | 0.4% |
| Mapped soil | 185 acres |
What the numbers mean here
On 89% of Edison's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 98% of the land very limited for septic absorption fields.
Drought in Morrow County
0% of Morrow 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 Edison. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43320 | 100% | 0 | $0 |
Homes in Edison
| Housing units | 172 |
| Median year built | 1946 |
| Built before 1980 | 81% |
| Built 2000 or later | 9% |
| Owner-occupied | 62% |
| Median value, owner-occupied | $141,900 |
| Single-family detached | 93% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Mount Gilead | 2 mi | 1% | 61% |
| Cardington | 4 mi | 12% | 96% |
| Fulton | 7 mi | 0% | 95% |
| Caledonia | 8 mi | 15% | 98% |
| Chesterville | 11 mi | 0% | 14% |
| Marengo | 11 mi | 0% | 97% |
| Ashley | 11 mi | 28% | 98% |
| Galion | 13 mi | under 1% | 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