It is situated 2.5 miles (4.0 km) north of St Austell,[2] 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 of the ward at the census 2011 was 4,479[3] Penwithick has a small local shop which also has a sub post office, a social club as well as a premises selling fish & chips.
There are plans to build a new settlement Baal & West Carclaze south of the village as part of the St Austell and Clay Country Eco-town.
This article about a location in the former borough of Restormel, Cornwall is a stub.