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Ostrander, Ohio
Inside Ostrander's city limits, a shallow water table limits basements on 86% of mapped land, the 4th-highest of 7 cities in Delaware County. Shrink-swell clay limits houses without basements on 4%.
That water-table share is close to Delaware County's 84%. FEMA's flood data list no flood losses since 2016 in ZIP code 43061 overlapping the city. Of its 317 homes, 30% were built before 1980; the median dates from 2006.
Data as of October 13, 2026 · sources · in Delaware 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 Ostrander
Basement waterproofing in Ostrander: a shallow water table limits basements on 86% of Ostrander's mapped land, more than in 73% of Ohio cities.
About 300 of Ostrander's 317 homes are detached houses.
Soil under Ostrander city limits
| Expansive clay (limits slab homes) | 4.2% |
| High water table (limits basements) | 85.7% |
| Septic fields very limited | 98.1% |
| Clay swell (LEP, by area) | 4.4% |
| High-swell land (LEP 6%+) | under 0.1% |
| Mapped soil | 604 acres |
What the numbers mean here
On 86% of Ostrander'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 Delaware County
0% of Delaware 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 Ostrander. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 43061 | 100% | 0 | $0 |
Homes in Ostrander
| Housing units | 317 |
| Median year built | 2006 |
| Built before 1980 | 30% |
| Built 2000 or later | 59% |
| Owner-occupied | 97% |
| Median value, owner-occupied | $485,600 |
| Single-family detached | 99% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Magnetic Springs | 7 mi | 25% | 97% |
| Delaware | 7 mi | 23% | 72% |
| Marysville | 8 mi | 24% | 83% |
| Shawnee Hills | 8 mi | 6% | 94% |
| Powell | 10 mi | 12% | 71% |
| Dublin | 11 mi | 26% | 79% |
| Unionville Center | 12 mi | 16% | 50% |
| Plain City | 12 mi | 38% | 90% |
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