Lake Darby is a census-designated place in Franklin County, Ohio, United States: located partly in Brown Township and partly in Prairie Township. It is more commonly known among locals as Darby Estates, which is also the name of the older housing development there, with the newer development called West Point. As of the 2000 census, the CDP had a population of 3,727. Lake Darby apartments for rent comparison page shows most up to date rent information on Lake Darby apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.