Of 88 counties in the Buckeye State, Darke County is 13th in terms of its size (599 square miles). Darke County is in Southwest Ohio. Recent Land Network data shows around 1,000 acres of lakefront land and property for sale in Ohio's Darke County, which is valued at a combined $2 million. Browse all waterfront property for sale in Darke County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Darke County is residential property.