Mingo County, WV Shrink-Swell Risk
Shrink-swell potential in Mingo County, WV
Low
Soil across 100% of Mingo County, WV comes back "Low" in USDA's shrink-swell data, averaging 0.68% linear extensibility. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Mingo County, WV - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Mingo County will actually do.
Mingo County: the real numbers
Mingo County's soil reading points toward standard foundation practice as the likely outcome, not the exception. A geotechnical report runs $1,000-$5,000, typically around $2,700. Foundation repair, if a specific lot turns out to differ from the county average, runs $5,000-$15,000.
Where this sits nationally
Among the 3,085 rated counties on this site, Mingo County, WV ranks 3,021 most-constrained nationally, and 55 of 55 within West Virginia. The county spans 423 square miles, home to 21,712 people.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Grant County, WI and Missoula County, MT are worth a look for comparison.
How this reading is built, and its real limits · Moisture management: the cheap fix that works on any soil
Elsewhere in West Virginia
Every county in West Virginia is on this site, including Logan County, WV and Hardy County, WV. The full underlying dataset is downloadable directly, one row per county.