Fresno County, CA Shrink-Swell Risk
Fresno County's SSURGO shrink-swell reading
Moderate
In Fresno County, CA, 65.7% of the surveyed soil carries a "Moderate" shrink-swell rating, 3.05% 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
Fresno County's reading is an average across the whole county, not a promise about any one lot inside it. 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 Fresno County.
Budgeting for Fresno County, CA
Fresno 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.
Fresno County's rank among California counties
Among the 3,085 rated counties on this site, Fresno County, CA ranks 1,153 most-constrained nationally, and 23 of 58 within California. Fresno County, CA is 5,959 square miles with a population of 1,024,125.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Brewster County, TX and Buffalo County, SD 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 California
Every county in California is on this site, including Plumas County, CA and Yolo County, CA. The full underlying dataset is downloadable directly, one row per county.