Isabella County, MI Shrink-Swell Risk

Isabella County's SSURGO shrink-swell reading

Low

In Isabella County, MI, 86.9% of the surveyed soil carries a "Low" shrink-swell rating, 1.45% linear extensibility on average. 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.

Before you rely on this for one address

Isabella County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Budgeting for Isabella County, MI

Isabella 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.

Isabella County's rank among Michigan counties

Among the 3,085 rated counties on this site, Isabella County, MI ranks 2,565 most-constrained nationally, and 38 of 83 within Michigan. The county spans 573 square miles, home to 65,072 people.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Montague County, TX and Fredericksburg city, VA 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 Michigan

Every county in Michigan is on this site, including Macomb County, MI and Ionia County, MI. The full underlying dataset is downloadable directly, one row per county.