Perry County, MS Shrink-Swell Risk

What Perry County, MS's soil means for a foundation

Low

USDA's SSURGO data puts Perry County, MS's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.21% across 77.7% 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 Perry County, MS at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Report cost vs. repair cost

With Perry County, MS 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.

Perry County's rank among Mississippi counties

Nationally, Perry County, MS is the 1,792-most-constrained of 3,085 rated counties for shrink-swell soil. Within Mississippi alone it ranks 41 of 82. Perry County, MS is 647 square miles with a population of 11,406.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Taylor County, WV and Lamar 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 Mississippi

Every county in Mississippi is on this site, including Clay County, MS and Smith County, MS. The full underlying dataset is downloadable directly, one row per county.