Truro, city, Cornwall unitary authority, southwestern England. Centrally situated in the unitary authority, it bestrides the River Truro at the head of the tidal estuary of the River Fal. Truro is the administrative centre of Cornwall. In the 1990s the crown courts moved from Bodmin to Truro, in effect making Truro the county town (seat) of Cornwall; officially, however, Bodmin retains that status.
The Anglican diocese of Truro, centred on the Cathedral of St. Mary (1880–1910), covers Cornwall and part of the county of Devon. Truro’s industries include lumbering, food processing, and light engineering. Dredging enables small vessels to reach the quays, but the harbour is dry at low tide. Kaolin (china clay) is the chief export. Pop. (2001) 17,431; (2011) 18,766.