Perry County, AR Shrink-Swell Risk
Perry County's SSURGO shrink-swell reading
Moderate
In Perry County, AR, 68.4% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.53% linear extensibility on average. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.
Before you rely on this for one address
Perry County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Perry County will actually do.
Budgeting for Perry County, AR
Perry 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, Perry County, AR ranks 825 most-constrained nationally, and 29 of 75 within Arkansas. Perry County, AR is 551 square miles with a population of 10,251.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Palo Pinto County, TX and Baldwin County, GA 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 Arkansas
Every county in Arkansas is on this site, including Carroll County, AR and Faulkner County, AR. The full underlying dataset is downloadable directly, one row per county.