Scott County, MS Shrink-Swell Risk
Shrink-swell potential in Scott County, MS
Moderate
Soil across 56.6% of Scott County, MS comes back "Moderate" in USDA's shrink-swell data, averaging 3.84% linear extensibility. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Scott County, MS - never a reading for one specific parcel. 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 Scott County.
Scott County: the real numbers
Scott 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.
How Scott County, MS compares
Among the 3,085 rated counties on this site, Scott County, MS ranks 652 most-constrained nationally, and 20 of 82 within Mississippi. Scott County covers 609 square miles and counts 27,666 residents.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Olmsted County, MN and Gilpin County, CO 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 Mississippi
Every county in Mississippi is on this site, including Lawrence County, MS and Holmes County, MS. The full underlying dataset is downloadable directly, one row per county.