BasementSoil

Basement risk, county by county

The American basement belt: 1994 counties across 35 states, each with the USDA soil survey values that decide how the ground behaves under a house. Counties where houses sit on slabs instead.

Highest combined risk in our coverage

CountyIndexDominant drainage class
Clay County, MN86poorly drained
Kittson County, MN86poorly drained
Pennington County, MN86poorly drained
Red Lake County, MN86poorly drained
Wilkin County, MN86poorly drained
Traill County, ND86poorly drained
Sargent County, ND83poorly drained
Grand Forks County, ND80poorly drained
Noble County, IN79poorly drained
Pembina County, ND79poorly drained
Richland County, ND79poorly drained
Oakland County, MI78poorly drained
Polk County, MN78poorly drained
Williams County, OH78poorly drained
Fulton County, OH77poorly drained
Marshall County, MN76poorly drained
Norman County, MN76poorly drained
Huron County, OH76poorly drained
Steuben County, IN75poorly drained
Cass County, ND75poorly drained

Why these twenty, explained

Colorado 64 counties

Connecticut 8 counties

Delaware 3 counties

District of Columbia 1 counties

Idaho 44 counties

Illinois 102 counties

Indiana 92 counties

Iowa 99 counties

Kansas 105 counties

Kentucky 120 counties

Maine 16 counties

Maryland 24 counties

Massachusetts 14 counties

Michigan 83 counties

Minnesota 87 counties

Missouri 115 counties

Montana 56 counties

Nebraska 93 counties

New Hampshire 10 counties

New Jersey 21 counties

New York 62 counties

North Dakota 53 counties

Ohio 88 counties

Oregon 36 counties

Pennsylvania 67 counties

Rhode Island 5 counties

South Dakota 66 counties

Tennessee 95 counties

Utah 29 counties

Vermont 14 counties

Virginia 133 counties

Washington 39 counties

West Virginia 55 counties

Wisconsin 72 counties

Wyoming 23 counties

Page data updated