Bell County, TX Shrink-Swell Risk
Shrink-swell potential in Bell County, TX
High
Soil across 35.4% of Bell County, TX comes back "High" in USDA's shrink-swell data, averaging 7.52% linear extensibility. Ground like this needs active moisture control to keep a conventional foundation from cracking - it's not automatic either way.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Bell County, TX - never a reading for one specific parcel. A site-specific soil report, usually $1,000-$5,000, is what an engineer would actually pull before designing a foundation on a lot in Bell County.
Bell County: the real numbers
With Bell 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.
Bell County's rank among Texas counties
Among the 3,085 rated counties on this site, Bell County, TX ranks 67 most-constrained nationally, and 22 of 253 within Texas. Bell County, TX is 1,054 square miles with a population of 399,578.
Before you act on this
Orleans Parish, LA carries this site's most-constrained reading. Clinton County, NY and Greene County, IA 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 Anderson County, TX and Robertson County, TX. The full underlying dataset is downloadable directly, one row per county.