Edwards County, IL Shrink-Swell Risk
Edwards County's SSURGO shrink-swell reading
Moderate
In Edwards County, IL, 51.7% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.05% linear extensibility on average. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
Before you rely on this for one address
Edwards 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 Edwards County, IL
Edwards 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, Edwards County, IL ranks 1,162 most-constrained nationally, and 88 of 101 within Illinois. Edwards County, IL is 222 square miles with a population of 5,984.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Mississippi County, MO and Perry County, IN 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 Illinois
Every county in Illinois is on this site, including Bond County, IL and Massac County, IL. The full underlying dataset is downloadable directly, one row per county.