Lafayette County, MS Shrink-Swell Risk

Shrink-swell potential in Lafayette County, MS

Low

Soil across 80.1% of Lafayette County, MS comes back "Low" in USDA's shrink-swell data, averaging 2% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Lafayette 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 Lafayette County.

Lafayette County: the real numbers

Lafayette 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Lafayette County, MS ranks 1,982 most-constrained nationally, and 50 of 82 within Mississippi. The county spans 632 square miles, home to 59,843 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. St. Clair County, MI and Iberville Parish, LA 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 Leflore County, MS and Pontotoc County, MS. The full underlying dataset is downloadable directly, one row per county.