Caterham (/ˈkeɪtᵊrəm/) is a town in the Tandridge District of Surrey, England. The town is administratively divided into two: Caterham on the Hill, and Caterham Valley, which includes the main town centre in the middle of a dry valley but rises to equal heights to the south. The town lies close to the A22, 21 miles (34 km) from Guildford and 6 miles (9.7 km) south of Croydon, in an upper valley cleft into the dip slope of the North Downs. Caterham on the Hill is above the valley to the west.