Of 102 counties in the Land of Lincoln, DeWitt County is 73rd in terms of its size (405 square miles). DeWitt County is in Central Illinois. Recent Land Network data includes nearly 1,000 acres of riverfront property for sale in Illinois's DeWitt County, which is valued at a combined $219,500. Browse all waterfront property for sale in DeWitt 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 DeWitt County is homesite.