Santa Cruz County, AZ Shrink-Swell Risk

Shrink-swell potential in Santa Cruz County, AZ

Moderate

Soil across 60.3% of Santa Cruz County, AZ comes back "Moderate" in USDA's shrink-swell data, averaging 3.07% linear extensibility. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What this number does and doesn't tell you

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

Santa Cruz County: the real numbers

Santa Cruz 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, Santa Cruz County, AZ ranks 1,141 most-constrained nationally, and 5 of 15 within Arizona. The county spans 1,236 square miles, home to 50,508 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Teton County, MT and Shiawassee County, MI 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 Arizona

Every county in Arizona is on this site, including Mohave County, AZ and Greenlee County, AZ. The full underlying dataset is downloadable directly, one row per county.