HomeOhioWarren CountyMaineville
Maineville, Ohio
Inside Maineville's city limits, a shallow water table limits basements on 77% of mapped land, the 3rd-highest of 13 cities in Warren County. Shrink-swell clay limits houses without basements on 3%.
That water-table share is above Warren County's 51%. FEMA's flood data list 15 flood losses since 2016 in the 3 ZIP codes overlapping the city. Of its 697 homes, 11% were built before 1980; the median dates from 2004.
Data as of October 13, 2026 · sources · in Warren County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 3 overlapping ZIPs
of homes built before 1980
Basement waterproofing in Maineville
Basement waterproofing in Maineville: a shallow water table limits basements on 77% of Maineville's mapped land, more than in 62% of Ohio cities, and the 3 ZIP codes overlapping Maineville logged 15 FEMA flood losses since 2016.
In Warren County, 42% of the 24 flood-loss buildings with a recorded foundation type had basements.
About 600 of Maineville's 697 homes are detached houses.
Soil under Maineville city limits
| Expansive clay (limits slab homes) | 3.3% |
| High water table (limits basements) | 76.6% |
| Septic fields very limited | 94.2% |
| Clay swell (LEP, by area) | 4.2% |
| High-swell land (LEP 6%+) | 8.5% |
| Urban land, not rated | 5.1% |
| Mapped soil | 1,077 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Rossmoyne | 18% | 96% |
| Westboro | 17% | n/a |
| Jonesboro | 15% | n/a |
| Hickory | 12% | n/a |
| Clermont | 11% | n/a |
| Schaffer | 10% | n/a |
What the numbers mean here
On 77% of Maineville's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 94% of the land very limited for septic absorption fields.
Drought in Warren County
0% of Warren 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 Maineville. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45039 | 45% | 0 | $0 |
| 45140 | 31% | 11 | $100,312 |
| 45152 | 25% | 4 | $10,583 |
Homes in Maineville
| Housing units | 697 |
| Median year built | 2004 |
| Built before 1980 | 11% |
| Built 2000 or later | 55% |
| Owner-occupied | 77% |
| Median value, owner-occupied | $287,400 |
| Single-family detached | 84% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| South Lebanon | 4 mi | 9% | 25% |
| Morrow | 4 mi | 11% | 16% |
| Pleasant Plain | 5 mi | 2% | 100% |
| Butlerville | 5 mi | 6% | 77% |
| Loveland | 6 mi | 9% | 23% |
| Mason | 7 mi | 4% | 41% |
| Lebanon | 7 mi | 16% | 27% |
| Montgomery | 10 mi | 5% | 8% |
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