Coldwaltham is a village and civil parish in the Horsham District of West Sussex, England. It is divided in two by the A29 road and lies 2.4 miles (3.9 km) southwest of Pulborough which has both a railway station on the Arun Valley Line and a bus connection to Worthing. It is around a 30-minute drive from Gatwick Airport. The 2011 Census population included the village of Hardham plus hamlet of Watersfield.