Greene County, IL Shrink-Swell Risk
Greene County's SSURGO shrink-swell reading
Moderate
In Greene County, IL, 63.1% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.66% 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
Greene 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 Greene County.
Budgeting for Greene County, IL
Greene 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.
Greene County's rank among Illinois counties
Among the 3,085 rated counties on this site, Greene County, IL ranks 750 most-constrained nationally, and 48 of 101 within Illinois. The county spans 543 square miles, home to 11,417 people.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Cleburne County, AL and Coos County, NH 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 Edgar County, IL and Washington County, IL. The full underlying dataset is downloadable directly, one row per county.