Greenville County, SC Shrink-Swell Risk
Greenville County's SSURGO shrink-swell reading
Low
In Greenville County, SC, 99.8% of the surveyed soil carries a "Low" shrink-swell rating, 1.57% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Greenville 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 Greenville County.
Budgeting for Greenville County, SC
Greenville 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, Greenville County, SC ranks 2,406 most-constrained nationally, and 33 of 46 within South Carolina. Greenville County covers 786 square miles and counts 570,745 residents.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Solano County, CA and Logan County, ND 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 South Carolina
Every county in South Carolina is on this site, including Hampton County, SC and Barnwell County, SC. The full underlying dataset is downloadable directly, one row per county.