Marion County, GA Shrink-Swell Risk

Marion County, GA's soil, for shrink-swell risk

Low

Marion County, GA: USDA's soil survey rates 99.4% of the county "Low" for shrink-swell potential (1.51% linear extensibility). Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.

What Marion County's reading doesn't cover

Two lots a mile apart in Marion County can carry different soil, even though they share one countywide reading. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

What it costs to find out, versus to ignore it

With Marion 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.

Where this sits nationally

Nationally, Marion County, GA is the 2,485-most-constrained of 3,085 rated counties for shrink-swell soil. Within Georgia alone it ranks 80 of 159. Marion County, GA is 366 square miles with a population of 7,635.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Osceola County, IA and Juab County, UT 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 Clay County, GA and Worth County, GA. The full underlying dataset is downloadable directly, one row per county.