Cotton County, OK Shrink-Swell Risk

Shrink-swell potential in Cotton County, OK

Moderate

Soil across 52.1% of Cotton County, OK comes back "Moderate" in USDA's shrink-swell data, averaging 4.88% linear extensibility. That's a middle reading: not the sharp swings that crack a foundation outright, but enough that grading and drainage are worth getting right.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Cotton County, OK - 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).

Cotton County: the real numbers

Cotton 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 Cotton County, OK compares

Among the 3,085 rated counties on this site, Cotton County, OK ranks 314 most-constrained nationally, and 7 of 77 within Oklahoma. The county spans 633 square miles, home to 5,503 people.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. McIntosh County, OK and Mercer County, PA 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 Oklahoma

Every county in Oklahoma is on this site, including Wagoner County, OK and Ellis County, OK. The full underlying dataset is downloadable directly, one row per county.