Santa Barbara County, CA Shrink-Swell Risk
Santa Barbara County's SSURGO shrink-swell reading
Low
In Santa Barbara County, CA, 64.1% of the surveyed soil carries a "Low" shrink-swell rating, 2.96% linear extensibility on average. Among the 3,144 counties on this site, that's the clean result: little shrink-swell movement, standard construction the likely outcome.
Before you rely on this for one address
Santa Barbara 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 Santa Barbara County, CA
Santa Barbara 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 Santa Barbara County, CA compares
Among the 3,085 rated counties on this site, Santa Barbara County, CA ranks 1,219 most-constrained nationally, and 28 of 58 within California. Santa Barbara County covers 2,734 square miles and counts 444,500 residents.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Brooks County, TX and East Baton Rouge 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 California
Every county in California is on this site, including Calaveras County, CA and Inyo County, CA. The full underlying dataset is downloadable directly, one row per county.