Jasper County, MS Shrink-Swell Risk
Shrink-swell potential in Jasper County, MS
Moderate
Soil across 65.7% of Jasper County, MS comes back "Moderate" in USDA's shrink-swell data, averaging 3.75% linear extensibility. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Jasper County, MS - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Jasper County: the real numbers
Jasper 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 Jasper County, MS compares
Among the 3,085 rated counties on this site, Jasper County, MS ranks 700 most-constrained nationally, and 22 of 82 within Mississippi. Jasper County, MS is 676 square miles with a population of 15,799.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Franklin County, NC and Norman County, MN 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 Webster County, MS and Greene County, MS. The full underlying dataset is downloadable directly, one row per county.