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Fremont, Ohio
Inside Fremont's city limits, a shallow water table limits basements on 73% of mapped land, higher than 57% of Ohio cities. Shrink-swell clay limits houses without basements on 4%.
That water-table share is below Sandusky County's 80%. FEMA's flood data list 3 flood losses since 2016 in ZIP code 43420 overlapping the city. Of its 7,550 homes, 81% were built before 1980; the median dates from 1951.
Data as of October 13, 2026 · sources · in Sandusky 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 Fremont
Basement waterproofing in Fremont: a shallow water table limits basements on 73% of Fremont's mapped land, more than in 57% of Ohio cities, and the ZIP code overlapping Fremont logged 3 FEMA flood losses since 2016.
About 5,000 of Fremont's 7,550 homes are detached houses.
Soil under Fremont city limits
| Expansive clay (limits slab homes) | 3.8% |
| High water table (limits basements) | 72.7% |
| Septic fields very limited | 85.6% |
| Clay swell (LEP, by area) | 3.3% |
| High-swell land (LEP 6%+) | 1.3% |
| Mapped soil | 5,726 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Lenawee | 23% | n/a |
| Kibbie | 20% | n/a |
| Del Rey | 13% | n/a |
| Rossburg | 8% | n/a |
| Mentor | 8% | n/a |
| Colwood | 6% | n/a |
What the numbers mean here
On 73% of Fremont's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 86% of the land very limited for septic absorption fields.
Drought in Sandusky County
0% of Sandusky 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 Fremont. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43420 | 100% | 3 | $140,023 |
Homes in Fremont
| Housing units | 7,550 |
| Median year built | 1951 |
| Built before 1980 | 81% |
| Built 2000 or later | 5% |
| Owner-occupied | 57% |
| Median value, owner-occupied | $117,500 |
| Single-family detached | 66% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Lindsey | 7 mi | 3% | 91% |
| Green Springs | 7 mi | 12% | 77% |
| Clyde | 8 mi | 20% | 76% |
| Burgoon | 9 mi | 61% | 64% |
| Helena | 9 mi | 45% | 91% |
| Bettsville | 10 mi | 32% | 59% |
| Oak Harbor | 11 mi | 51% | 77% |
| Gibsonburg | 11 mi | 30% | 47% |
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