Caerphilly kīrfĭl´ē, kär– [key], Welsh Caerffili, town (1981 pop. 42,376) and county borough, 108 sq mi (279 sq km), S Wales. Famous for its cheese-making industry, the town of Caerphilly is home to a 13th-century castle, which is the largest in Wales and the second largest in Great Britain after Windsor Castle. A number of light industries dominate the economy.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: British and Irish Political Geography