Caerphilly (/kɛərˈfɪli/; Welsh:Caerffili, Welsh pronunciation: [ˌkɑːɨrˈfɪlɪ]) is a town in South Wales, at the southern end of the Rhymney Valley. At the 2001 Census, the town had a population of 30,388. It is a commuter town for Cardiff and Newport, 7.5 miles (12 km) and 12 miles (19 km) away respectively, and is separated from the Cardiff suburbs of Lisvane and Rhiwbina by Caerphilly mountain. In the county of Glamorgan, on the border with Monmouthshire, it is the largest town in the county borough of Caerphilly and gives its name to Caerphilly cheese.