Penwithick (Cornish: Pennwydhek) or Penwithick Stents is a village in Cornwall, England, United Kingdom. It is situated 2.5 miles (4.0 km) north of St Austell, in the civil parish of Treverbyn in the 'clay country' area of china clay quarrying. Whilst falling in a different civil parish Penwithick does have an electoral ward in its own name. The population at the census 2011 was 4,479 Penwithick has a small local shop which also has a sub post office, a social club as well as a premises selling fish & chips.