Truro (/ˈtrʊəroʊ/; Cornish:Truru) is a city and civil parish in Cornwall, England, United Kingdom. Truro is Cornwall's county town and only city, its centre for administration, leisure and retail and had a population recorded in the 2011 census of 18,766. It is the most southern city in mainland Great Britain. People from Truro are known as Truronians.