Polk County, MN Shrink-Swell Risk

Polk County's SSURGO shrink-swell reading

Low

In Polk County, MN, 56.8% of the surveyed soil carries a "Low" shrink-swell rating, 2.59% 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

Polk County's reading is an average across the whole county, not a promise about any one lot inside it. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Polk County.

Budgeting for Polk County, MN

Polk 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.

How Polk County, MN compares

Among the 3,085 rated counties on this site, Polk County, MN ranks 1,486 most-constrained nationally, and 51 of 87 within Minnesota. Polk County, MN is 1,971 square miles with a population of 30,413.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Monroe County, PA and Richland County, IL 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 Minnesota

Every county in Minnesota is on this site, including Lyon County, MN and Itasca County, MN. The full underlying dataset is downloadable directly, one row per county.