Duncton village and parish is to the south of Petworth at the foot of the South Downs and is on the A285 Chichester road which hairpins out of the village to the summit of the Downs. The parking area near the top of Duncton Hill has panoramic views across the Rother Valley.
 
Duncton has two churches, Anglican and Roman catholic. The Cricketers pub sits in a lay-by off the A285 in the centre of the village. It is named in honour of Jem Broadbridge and Jemmy Dean. Both played cricket for Sussex in the 19th century and were past residents of Duncton. Dean was at one time the landlord of this pub.
There is a school, a modern village hall and a couple of croquet pitches.
 
Duncton Mill at the foot of the Downs escarpment was powered by a large spring flowing from the chalk. This regular supply of water at a constant temperature throughout the year has proved ideal for its modern use as a trout hatchery.
 
The 2001 census showed 356 people living in 156 households.