Prince George's County, MD Shrink-Swell Risk
Prince George's County's SSURGO shrink-swell reading
Low
In Prince George's County, MD, 99.3% of the surveyed soil carries a "Low" shrink-swell rating, 1.49% 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
Prince George's County's reading is an average across the whole county, not a promise about any one lot inside it. A local geotechnical report, typically $1,000-$5,000 (around $2,700 typical), is the only way to know what one lot in Prince George's County will actually do.
Budgeting for Prince George's County, MD
Prince George's 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.
Prince George's County's rank among Maryland counties
Among the 3,085 rated counties on this site, Prince George's County, MD ranks 2,510 most-constrained nationally, and 10 of 24 within Maryland. Prince George's County, MD is 483 square miles with a population of 966,629.
For contrast
Orleans Parish, LA carries this site's most-constrained reading. Roscommon County, MI and Kossuth County, IA 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 Maryland
Every county in Maryland is on this site, including Anne Arundel County, MD and Howard County, MD. The full underlying dataset is downloadable directly, one row per county.