Knox County, OH Shrink-Swell Risk

Shrink-swell potential in Knox County, OH

Low

Soil across 67% of Knox County, OH comes back "Low" in USDA's shrink-swell data, averaging 2.36% linear extensibility. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Knox County, OH - never a reading for one specific parcel. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).

Knox County: the real numbers

Knox 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 Knox County, OH compares

Among the 3,085 rated counties on this site, Knox County, OH ranks 1,676 most-constrained nationally, and 74 of 88 within Ohio. The county spans 525 square miles, home to 63,848 people.

Before you act on this

Orleans Parish, LA carries this site's most-constrained reading. Zapata County, TX and Sumter County, SC 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 Ohio

Every county in Ohio is on this site, including Portage County, OH and Hamilton County, OH. The full underlying dataset is downloadable directly, one row per county.