Oatfield is a census-designated place in Clackamas County, Oregon, United States. It is in the Portland metropolitan area. It is named after Oatfield Road, which runs between Milwaukie and Gladstone. As of the 2000 census, the CDP population was 15,750. Oatfield apartments for rent comparison page shows most up to date rent information on Oatfield apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.