Caterham is a town in the Tandridge District of Surrey, England. The town is geographically divided into two sections: Caterham on the Hill and Caterham Valley - the main town centre. The town lies close to the A22, 21 miles from Guildford and a few miles south of Croydon, in a valley cut into the dip slope of the North Downs. Caterham on the Hill is above the western side of the valley. The resident population of Caterham is 20,957 people. Due to its proximity to London, Caterham is predominantly a commuter town. More information on the Wikipedia page [1]