Union County, FL Shrink-Swell Risk

Union County's SSURGO shrink-swell reading

Low

In Union County, FL, 100% of the surveyed soil carries a "Low" shrink-swell rating, 1.05% 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

Union 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 Union County, FL

Union 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.

Where this sits nationally

Among the 3,085 rated counties on this site, Union County, FL ranks 2,875 most-constrained nationally, and 36 of 66 within Florida. Union County covers 244 square miles and counts 15,738 residents.

For contrast

Orleans Parish, LA carries this site's most-constrained reading. Jefferson County, KY and Mitchell 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 Florida

Every county in Florida is on this site, including Hendry County, FL and Wakulla County, FL. The full underlying dataset is downloadable directly, one row per county.