Jones County, IA Shrink-Swell Risk
Jones County's SSURGO shrink-swell reading
Moderate
In Jones County, IA, 53.9% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.09% 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
Jones County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Budgeting for Jones County, IA
Jones 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 Jones County, IA compares
Among the 3,085 rated counties on this site, Jones County, IA ranks 1,126 most-constrained nationally, and 82 of 99 within Iowa. Jones County covers 576 square miles and counts 21,116 residents.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Yuma County, CO and Benton County, IA 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 Iowa
Every county in Iowa is on this site, including Boone County, IA and Emmet County, IA. The full underlying dataset is downloadable directly, one row per county.