Jackson County, TX Shrink-Swell Risk
Jackson County's SSURGO shrink-swell reading
High
In Jackson County, TX, 50.5% of the surveyed soil carries a "High" shrink-swell rating, 6.08% linear extensibility on average. Ground like this needs active moisture control to keep a conventional foundation from cracking - it's not automatic either way.
Before you rely on this for one address
Jackson County's reading is an average across the whole county, not a promise about any one lot inside it. The real answer for one lot is still a site-specific geotechnical report, running about $1,000-$5,000 (typically near $2,700).
Budgeting for Jackson County, TX
With Jackson County, TX rating "High", the gap between finding out early and finding out late is the whole decision. A geotechnical report runs $1,000-$5,000 (typically $2,700); an actual foundation repair, once cracking sets in, typically runs $5,000-$15,000 (around $10,000 typical) - roughly 4x the report.
Where this sits nationally
Among the 3,085 rated counties on this site, Jackson County, TX ranks 121 most-constrained nationally, and 45 of 253 within Texas. The county spans 829 square miles, home to 15,284 people.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Lonoke County, AR and Buffalo County, NE are worth a look for comparison.
How this reading is built, and its real limits · The warning signs of expansive-clay damage, explained
Elsewhere in Texas
Every county in Texas is on this site, including Webb County, TX and Victoria County, TX. The full underlying dataset is downloadable directly, one row per county.