92 counties mapped. On average, 8% of Indiana county soil area is high shrink-swell clay (USDA SSURGO).
Higher percentages mean more of a county's mapped soil is shrink-swell clay that expands and contracts with moisture. This is county-scale exposure, not a diagnosis of any single home — but it tells you whether soil movement belongs on your radar.
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Before you call a foundation company →| County | Tier | High-risk % | Moderate % |
|---|---|---|---|
| Harrison | Severe | 60% | 23% |
| Switzerland | Severe | 51% | 25% |
| Ohio | Severe | 49% | 36% |
| Lawrence | Severe | 47% | 19% |
| Dearborn | Severe | 46% | 30% |
| Blackford | Severe | 40% | 56% |
| Washington | Severe | 39% | 23% |
| Jay | Severe | 38% | 59% |
| Floyd | Severe | 31% | 22% |
| Perry | High | 29% | 10% |
| Orange | High | 26% | 32% |
| Wells | High | 26% | 67% |
| Monroe | High | 18% | 21% |
| De Kalb | High | 18% | 68% |
| Clark | High | 17% | 35% |
| Whitley | High | 16% | 72% |
| Lake | High | 16% | 45% |
| Franklin | High | 15% | 53% |
| Jefferson | Moderate | 13% | 32% |
| Crawford | Moderate | 11% | 3% |
| Adams | Moderate | 10% | 86% |
| Allen | Moderate | 8% | 79% |
| Wayne | Moderate | 8% | 84% |
| Greene | Moderate | 7% | 15% |
| Porter | Moderate | 7% | 48% |
| Vermillion | Moderate | 6% | 64% |
| Randolph | Moderate | 6% | 88% |
| Jasper | Moderate | 6% | 25% |
| Newton | Moderate | 6% | 34% |
| Ripley | Moderate | 6% | 18% |
| Jennings | Moderate | 5% | 29% |
| Noble | Low | 5% | 57% |
| Owen | Low | 4% | 35% |
| Vanderburgh | Low | 4% | 21% |
| Henry | Low | 4% | 90% |
| Kosciusko | Low | 4% | 37% |
| Grant | Low | 4% | 91% |
| Warren | Low | 4% | 82% |
| Jackson | Low | 4% | 30% |
| Spencer | Low | 4% | 37% |
| Knox | Low | 3% | 23% |
| Gibson | Low | 3% | 30% |
| Martin | Low | 3% | 34% |
| Wabash | Low | 3% | 82% |
| Miami | Low | 3% | 79% |
| Lagrange | Low | 3% | 23% |
| Bartholomew | Low | 3% | 60% |
| Warrick | Low | 2% | 45% |
| Pulaski | Low | 2% | 28% |
| Delaware | Low | 2% | 87% |
| Scott | Low | 2% | 39% |
| Daviess | Low | 2% | 14% |
| Benton | Low | 2% | 93% |
| Clay | Low | 2% | 32% |
| Cass | Low | 2% | 80% |
| Dubois | Low | 2% | 8% |
| Huntington | Low | 2% | 92% |
| St. Joseph | Low | 1% | 39% |
| Steuben | Low | 1% | 57% |
| Sullivan | Low | 1% | 47% |
| Vigo | Low | 1% | 52% |
| Morgan | Low | 1% | 69% |
| Montgomery | Low | 1% | 88% |
| Decatur | Low | 1% | 68% |
| Pike | Low | 1% | 16% |
| Howard | Low | 1% | 96% |
| La Porte | Low | 1% | 20% |
| Tippecanoe | Low | 1% | 73% |
| Brown | Low | 0% | 30% |
| Hancock | Low | 0% | 97% |
| Marshall | Low | 0% | 54% |
| Posey | Low | 0% | 41% |
| Carroll | Low | 0% | 83% |
| Clinton | Low | 0% | 93% |
| Madison | Low | 0% | 96% |
| Elkhart | Low | 0% | 45% |
| Rush | Low | 0% | 95% |
| Parke | Low | 0% | 70% |
| Union | Low | 0% | 94% |
| White | Low | 0% | 56% |
| Boone | Low | 0% | 93% |
| Fayette | Low | 0% | 91% |
| Fountain | Low | 0% | 85% |
| Fulton | Low | 0% | 30% |
| Hamilton | Low | 0% | 84% |
| Hendricks | Low | 0% | 85% |
| Johnson | Low | 0% | 81% |
| Marion | Low | 0% | 58% |
| Putnam | Low | 0% | 72% |
| Shelby | Low | 0% | 91% |
| Starke | Low | 0% | 3% |
| Tipton | Low | 0% | 98% |
Risk metrics are computed from USDA SSURGO soil survey data (linear extensibility of soil components, area-weighted by county). Soil varies lot to lot — this is county-scale context, not a substitute for a site-specific geotechnical or structural assessment.