Terry County, TX Shrink-Swell Risk
What Terry County, TX's soil means for a foundation
Low
USDA's SSURGO data puts Terry County, TX's soil at "Low" shrink-swell potential, an area-weighted linear extensibility of 2.37% across 97.5% of the county's surveyed land. That's as favorable a county-level reading as this dataset produces - standard foundation practice, pending one lot's own geotechnical report.
This is a county figure, not a lot figure
USDA's survey covers the whole of Terry County, TX at once, not any single address. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Report cost vs. repair cost
With Terry County, TX rating "Low", a geotechnical report is still worthwhile before a build, just less urgent than in a high-risk county. 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 Terry County, TX compares
Nationally, Terry County, TX is the 1,673-most-constrained of 3,085 rated counties for shrink-swell soil. Within Texas alone it ranks 219 of 253. Terry County, TX is 889 square miles with a population of 11,602.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Barry County, MO and Hettinger County, ND 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
More of Texas
Every county in Texas is on this site, including Gaines County, TX and Ector County, TX. The full underlying dataset is downloadable directly, one row per county.