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Leesburg, Ohio
Inside Leesburg's city limits, a shallow water table limits basements on 61% of mapped land, the 4th-highest of 7 cities in Highland County. Shrink-swell clay limits houses without basements on 2%, the highest of 7 cities in Highland County.
That water-table share is close to Highland County's 66%. FEMA's flood data list no flood losses since 2016 in ZIP code 45135 overlapping the city. Of its 478 homes, 64% were built before 1980; the median dates from 1971.
Data as of October 13, 2026 · sources · in Highland 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 Leesburg
Basement waterproofing in Leesburg: a shallow water table limits basements on 61% of Leesburg's mapped land.
About 300 of Leesburg's 478 homes are detached houses.
Soil under Leesburg city limits
| Expansive clay (limits slab homes) | 2.3% |
| High water table (limits basements) | 61.2% |
| Septic fields very limited | 83.3% |
| Clay swell (LEP, by area) | 4.2% |
| High-swell land (LEP 6%+) | 1.0% |
| Urban land, not rated | 7.4% |
| Mapped soil | 749 acres |
What the numbers mean here
On 61% of Leesburg's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 83% of the land very limited for septic absorption fields.
Drought in Highland County
0% of Highland 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 Leesburg. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 45135 | 100% | 0 | $0 |
Homes in Leesburg
| Housing units | 478 |
| Median year built | 1971 |
| Built before 1980 | 64% |
| Built 2000 or later | 16% |
| Owner-occupied | 65% |
| Median value, owner-occupied | $150,900 |
| Single-family detached | 72% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Highland | 3 mi | 1% | 67% |
| New Vienna | 8 mi | 10% | 73% |
| Greenfield | 9 mi | 1% | 53% |
| Hillsboro | 10 mi | under 1% | 40% |
| Sabina | 11 mi | 39% | 98% |
| South Salem | 13 mi | 12% | 87% |
| Martinsville | 14 mi | 5% | 79% |
| Lynchburg | 14 mi | 1% | 69% |
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