Claymont sprang up along the banks of Naamans Creek, which flows into the Delaware River. Since before 1200 A.D., this once-abundant ecology has been continuously populated. It has gone through many cultural and economic transformations, the majority of which may still be seen in the community's architecture and living patterns today. Aborigines from the Middle Woodland period were the first to settle here (1100-1600 B.C.).
Interstate 95, Interstate 495, US 13 (Governor Printz Boulevard), and US 13 Bus are all major roadways that serve Claymont. DE 92 and the Philadelphia Pike (Naamans Road).