Truro is a cathedral city and civil parish in Cornwall, England. It is the southernmost city in the United Kingdom and lies 232 miles (373 km) west-south-west of London. It is Cornwall's county town, only city and a centre for administration, leisure and shopping. At the 2021 census the population of the parish was 21,046 and that of the built-up area was 23,060, as defined by the Office for National Statistics, which included the Gloweth and Treliske areas in the neighbouring parish of Kenwyn.