87 counties mapped. On average, 9% of Minnesota 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 % |
|---|---|---|---|
| Wilkin | Severe | 42% | 32% |
| Blue Earth | Severe | 40% | 38% |
| Traverse | Severe | 40% | 44% |
| Kittson | Severe | 38% | 8% |
| Faribault | Severe | 31% | 50% |
| Norman | Severe | 31% | 27% |
| Marshall | High | 26% | 21% |
| Koochiching | High | 25% | 20% |
| Clay | High | 24% | 28% |
| Le Sueur | High | 17% | 57% |
| Roseau | High | 17% | 12% |
| Jackson | High | 17% | 60% |
| Renville | High | 17% | 67% |
| Red Lake | High | 15% | 27% |
| Meeker | High | 15% | 36% |
| Rice | Moderate | 15% | 53% |
| Big Stone | Moderate | 15% | 53% |
| Waseca | Moderate | 15% | 71% |
| Fillmore | Moderate | 14% | 62% |
| Polk | Moderate | 14% | 36% |
| St. Louis | Moderate | 13% | 8% |
| Mahnomen | Moderate | 13% | 39% |
| Lincoln | Moderate | 13% | 70% |
| Freeborn | Moderate | 13% | 62% |
| Itasca | Moderate | 12% | 26% |
| Olmsted | Moderate | 12% | 54% |
| Stevens | Moderate | 11% | 63% |
| Sibley | Moderate | 11% | 74% |
| Redwood | Moderate | 11% | 73% |
| Kandiyohi | Moderate | 10% | 40% |
| Murray | Moderate | 10% | 64% |
| Pennington | Moderate | 10% | 39% |
| Lyon | Moderate | 9% | 75% |
| Clearwater | Moderate | 9% | 38% |
| Brown | Moderate | 8% | 63% |
| Lac qui Parle | Moderate | 8% | 58% |
| Yellow Medicine | Moderate | 8% | 73% |
| Watonwan | Moderate | 8% | 65% |
| Winona | Moderate | 8% | 54% |
| Nobles | Moderate | 8% | 81% |
| Wabasha | Moderate | 8% | 50% |
| Houston | Moderate | 7% | 54% |
| Nicollet | Moderate | 7% | 69% |
| Carlton | Moderate | 7% | 19% |
| Kanabec | Moderate | 7% | 0% |
| Steele | Moderate | 6% | 68% |
| Swift | Moderate | 6% | 39% |
| Lake of the Woods | Moderate | 6% | 13% |
| Pipestone | Moderate | 6% | 87% |
| Douglas | Moderate | 5% | 36% |
| Lake | Low | 5% | 0% |
| Pine | Low | 4% | 11% |
| Pope | Low | 4% | 22% |
| Grant | Low | 4% | 66% |
| Becker | Low | 4% | 29% |
| Carver | Low | 4% | 67% |
| Goodhue | Low | 4% | 40% |
| Cottonwood | Low | 4% | 77% |
| Mille Lacs | Low | 4% | 2% |
| Cook | Low | 3% | 0% |
| Hennepin | Low | 3% | 42% |
| Isanti | Low | 3% | 23% |
| Martin | Low | 3% | 71% |
| Otter Tail | Low | 3% | 18% |
| Mower | Low | 3% | 66% |
| Chippewa | Low | 2% | 71% |
| Dakota | Low | 2% | 20% |
| Beltrami | Low | 2% | 23% |
| McLeod | Low | 2% | 77% |
| Rock | Low | 2% | 85% |
| Cass | Low | 2% | 15% |
| Aitkin | Low | 1% | 16% |
| Wright | Low | 1% | 60% |
| Stearns | Low | 1% | 29% |
| Scott | Low | 1% | 61% |
| Dodge | Low | 1% | 80% |
| Benton | Low | 1% | 0% |
| Washington | Low | 1% | 11% |
| Todd | Low | 0% | 7% |
| Anoka | Low | 0% | 4% |
| Crow Wing | Low | 0% | 3% |
| Morrison | Low | 0% | 0% |
| Chisago | Low | 0% | 45% |
| Hubbard | Low | 0% | 4% |
| Ramsey | Low | 0% | 9% |
| Sherburne | Low | 0% | 4% |
| Wadena | Low | 0% | 0% |
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.