Vigo County, IN Shrink-Swell Risk
What Vigo County, IN's soil means for a foundation
Low
USDA's SSURGO data puts Vigo County, IN's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.8% across 52.2% of the county's surveyed land. 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.
This is a county figure, not a lot figure
USDA's survey covers the whole of Vigo County, IN at once, not any single address. 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 Vigo County.
Report cost vs. repair cost
With Vigo County, IN rating "Low", 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.
Vigo County's rank among Indiana counties
Nationally, Vigo County, IN is the 1,344-most-constrained of 3,085 rated counties for shrink-swell soil. Within Indiana alone it ranks 51 of 90. Vigo County, IN is 404 square miles with a population of 106,166.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Washington County, AL and Tippecanoe 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
More of Indiana
Every county in Indiana is on this site, including Marion County, IN and Huntington County, IN. The full underlying dataset is downloadable directly, one row per county.