Pennington County, MN Shrink-Swell Risk

Shrink-swell potential in Pennington County, MN

Low

Soil across 93.6% of Pennington County, MN comes back "Low" in USDA's shrink-swell data, averaging 2.04% linear extensibility. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Pennington County, MN - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Pennington County: the real numbers

Pennington 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.

Pennington County's rank among Minnesota counties

Among the 3,085 rated counties on this site, Pennington County, MN ranks 1,951 most-constrained nationally, and 59 of 87 within Minnesota. The county spans 617 square miles, home to 13,652 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Lane County, KS and Alleghany County, NC 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 Carver County, MN and Wabasha County, MN. The full underlying dataset is downloadable directly, one row per county.