Sedgwick County, KS Shrink-Swell Risk

Shrink-swell potential in Sedgwick County, KS

Moderate

Soil across 41.9% of Sedgwick County, KS comes back "Moderate" in USDA's shrink-swell data, averaging 4.11% linear extensibility. A real but modest amount of movement - standard foundations usually hold up, but drainage and moisture control around the foundation still matter more than on low-risk soil.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Sedgwick County, KS - 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 Sedgwick County.

Sedgwick County: the real numbers

Sedgwick 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, Sedgwick County, KS ranks 516 most-constrained nationally, and 53 of 105 within Kansas. Sedgwick County covers 997 square miles and counts 536,081 residents.

See how another county compares

Orleans Parish, LA carries this site's most-constrained reading. Union County, KY and Tarrant County, TX 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 Kansas

Every county in Kansas is on this site, including Cherokee County, KS and Greeley County, KS. The full underlying dataset is downloadable directly, one row per county.