Bond County, IL Shrink-Swell Risk
What Bond County, IL's soil means for a foundation
Moderate
USDA's SSURGO data puts Bond County, IL's soil at "Moderate" shrink-swell potential, an area-weighted linear extensibility of 4% across 74.3% of the county's surveyed land. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
This is a county figure, not a lot figure
USDA's survey covers the whole of Bond County, IL at once, not any single address. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Bond County will actually do.
Report cost vs. repair cost
With Bond County, IL rating "Moderate", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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 Bond County, IL compares
Nationally, Bond County, IL is the 564-most-constrained of 3,085 rated counties for shrink-swell soil. Within Illinois alone it ranks 30 of 101. Bond County covers 380 square miles and counts 16,576 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Mackinac County, MI and Franklin County, MO 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
More of Illinois
Every county in Illinois is on this site, including Schuyler County, IL and Putnam County, IL. The full underlying dataset is downloadable directly, one row per county.