The principal areas of Wales, comprising the counties and county boroughs of Wales, are a form of subdivision in Wales. There are currently 22 principal areas in Wales, and they were established in 1996. They are a single-tier form of local government, each governed by a principal council, with eleven styled as a "county" (sir) and the other eleven as a "county borough" (bwrdeistref sirol). They replaced the previous two-tier system of eight counties and 37 districts that were in place in Wales from 1974 to 1996.