Today, only 4.9% of the county’s population is Black, 9.7% is Hispanic, and an overwhelming 72.6% of residents are white, with 63.9% identifying as non-Hispanic white people.

The lake has “lots of interesting bays and restaurants,” Mr. Dewing said. “It’s a fun, fun recreational lake.” Because of the elevations, the 1.37-acre property has great lake views as ...