Ellis County, OK Shrink-Swell Risk
Ellis County's SSURGO shrink-swell reading
Low
In Ellis County, OK, 93.6% of the surveyed soil carries a "Low" shrink-swell rating, 1.56% linear extensibility on average. That's the easiest starting point on this site's scale - a standard foundation is the reasonable default here, though any one lot can still differ.
Before you rely on this for one address
Ellis County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Ellis County will actually do.
Budgeting for Ellis County, OK
Ellis 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.
Ellis County's rank among Oklahoma counties
Among the 3,085 rated counties on this site, Ellis County, OK ranks 2,438 most-constrained nationally, and 75 of 77 within Oklahoma. Ellis County, OK is 1,231 square miles with a population of 3,601.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Harrison County, KY and Pasquotank County, NC 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 Roger Mills County, OK and Lincoln County, OK. The full underlying dataset is downloadable directly, one row per county.