Randolph County, GA Shrink-Swell Risk
What Randolph County, GA's soil means for a foundation
Low
USDA's SSURGO data puts Randolph County, GA's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 1.14% across 100% of the county's surveyed land. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
This is a county figure, not a lot figure
USDA's survey covers the whole of Randolph County, GA 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 Randolph County.
Report cost vs. repair cost
With Randolph County, GA 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.
Randolph County's rank among Georgia counties
Nationally, Randolph County, GA is the 2,814-most-constrained of 3,085 rated counties for shrink-swell soil. Within Georgia alone it ranks 126 of 159. The county spans 428 square miles, home to 6,085 people.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Mason County, IL and Deaf Smith County, TX 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 Georgia
Every county in Georgia is on this site, including Whitfield County, GA and Appling County, GA. The full underlying dataset is downloadable directly, one row per county.