Willacy County, TX Shrink-Swell Risk
Shrink-swell potential in Willacy County, TX
Moderate
Soil across 44.8% of Willacy County, TX comes back "Moderate" in USDA's shrink-swell data, averaging 3.8% linear extensibility. Conventional foundations are the reasonable expectation here, with routine moisture-control practice rather than special engineering.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Willacy County, TX - never a reading for one specific parcel. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Willacy County will actually do.
Willacy County: the real numbers
Willacy 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 Willacy County, TX compares
Among the 3,085 rated counties on this site, Willacy County, TX ranks 676 most-constrained nationally, and 143 of 253 within Texas. Willacy County, TX is 591 square miles with a population of 20,027.
See how another county compares
Orleans Parish, LA carries this site's most-constrained reading. Pittsburg County, OK and Maui County, HI 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 Texas
Every county in Texas is on this site, including Irion County, TX and Maverick County, TX. The full underlying dataset is downloadable directly, one row per county.