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Jackson, Ohio
Inside Jackson's city limits, a shallow water table limits basements on 70% of mapped land, the 3rd-highest of 4 cities in Jackson County. Shrink-swell clay limits houses without basements on 10%, the 3rd-highest of 4 cities in Jackson County.
That water-table share is above Jackson County's 53%. FEMA's flood data list 5 flood losses since 2016 in ZIP code 45640 overlapping the city. Of its 3,024 homes, 71% were built before 1980; the median dates from 1959.
Data as of October 13, 2026 · sources · in Jackson 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 Jackson
Basement waterproofing in Jackson: a shallow water table limits basements on 70% of Jackson's mapped land, more than in 54% of Ohio cities, and the ZIP code overlapping Jackson logged 5 FEMA flood losses since 2016.
About 2,200 of Jackson's 3,024 homes are detached houses.
Soil under Jackson city limits
| Expansive clay (limits slab homes) | 10.5% |
| High water table (limits basements) | 69.8% |
| Septic fields very limited | 86.4% |
| Clay swell (LEP, by area) | 3.4% |
| High-swell land (LEP 6%+) | 10.6% |
| Mapped soil | 5,951 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Omulga | 20% | 99% |
| Wharton | 14% | n/a |
| Piopolis | 12% | n/a |
| Latham | 5% | n/a |
| Clymer | 5% | n/a |
| Rarden | 5% | n/a |
What the numbers mean here
On 70% of Jackson'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 Jackson County
0% of Jackson 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 Jackson. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45640 | 100% | 5 | $286,545 |
Homes in Jackson
| Housing units | 3,024 |
| Median year built | 1959 |
| Built before 1980 | 71% |
| Built 2000 or later | 7% |
| Owner-occupied | 58% |
| Median value, owner-occupied | $153,600 |
| Single-family detached | 72% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Coalton | 5 mi | 10% | 60% |
| Wellston | 8 mi | 15% | 77% |
| Beaver | 10 mi | 2% | 81% |
| Hamden | 10 mi | under 1% | 87% |
| Oak Hill | 11 mi | 13% | 77% |
| Centerville (Thurman) | 15 mi | 1% | 79% |
| South Webster | 16 mi | 6% | 67% |
| McArthur | 17 mi | 7% | 81% |
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