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Warren, Ohio
Inside Warren's city limits, a shallow water table limits basements on 53% of mapped land. Shrink-swell clay limits houses without basements on 0%.
That water-table share is below Trumbull County's 77%. USDA doesn't rate the 34% of mapped land classed as urban land, so these shares are floors. FEMA's flood data list 6 flood losses since 2016 in the 3 ZIP codes overlapping the city. Of its 19,012 homes, 90% were built before 1980; the median dates from 1955.
Data as of November 3, 2026 · sources · in Trumbull 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 Warren
Basement waterproofing in Warren: a shallow water table limits basements on 53% of Warren's mapped land, and the 3 ZIP codes overlapping Warren logged 6 FEMA flood losses since 2016.
About 13,600 of Warren's 19,012 homes are detached houses.
Soil under Warren city limits
| Expansive clay (limits slab homes) | 0.0% |
| High water table (limits basements) | 53.1% |
| Septic fields very limited | 54.3% |
| Clay swell (LEP, by area) | 3.5% |
| High-swell land (LEP 6%+) | 0.0% |
| Urban land, not rated | 33.6% |
| Mapped soil | 10,317 acres |
| Soil series | Share here | Series nationally: high water table |
|---|---|---|
| Caneadea | 14% | n/a |
| Fitchville | 12% | 96% |
| Wadsworth | 7% | n/a |
| Canadice | 4% | n/a |
| Sebring | 4% | n/a |
| Haskins | 4% | n/a |
What the numbers mean here
On 53% of Warren's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 54% of the land very limited for septic absorption fields.
Warren covers 16.0 square miles of land and counts 19,012 housing units, about 1,192 per square mile.
56% of Warren's occupied homes are owner-occupied, and the median owner-occupied home is valued at $86,400; 4% of all homes in the city date from 2000 or later.
The largest soil series under Warren is Caneadea, on 14% of the mapped land, followed by Fitchville at 12%.
Clay swell, measured as linear extensibility, averages 3.5% across Warren's 10,317 mapped acres.
Drought in Trumbull County
0% of Trumbull County is in drought (D1 or worse) on the November 3, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap Warren. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 44483 | 39% | 2 | $6,210 |
| 44485 | 35% | 3 | $18,682 |
| 44484 | 20% | 1 | $1,519 |
Homes in Warren
| Housing units | 19,012 |
| Median year built | 1955 |
| Built before 1980 | 90% |
| Built 2000 or later | 4% |
| Owner-occupied | 56% |
| Median value, owner-occupied | $86,400 |
| Single-family detached | 72% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Niles | 5 mi | 0% | 43% |
| Lordstown | 5 mi | 1% | 84% |
| McDonald | 7 mi | 0% | 32% |
| Girard | 8 mi | 0% | 47% |
| Cortland | 8 mi | 0% | 82% |
| Newton Falls | 9 mi | under 1% | 56% |
| Windham | 12 mi | 0% | 85% |
| Craig Beach | 12 mi | under 1% | 50% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (November 3, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status