Prospect is a city in far northeast Jefferson County, Kentucky, along the Ohio River. Part of it extends into Oldham County, making it one of the few cities in Jefferson County to extend past the county line. The population was 4,657 at the 2000 census. It is bordered by Oldham County to the northeast, the river to the west, and the Harrods Creek area to the southwest. Highway 42 is the primary transportation artery running through the area. Prospect is the ninth wealthiest place in Kentucky, and the third wealthiest of places with a population over 1,000. Prospect apartments for rent comparison page shows most up to date rent information on Prospect apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.