Storrington is a town and former civil parish, now in the parish of Storrington and Sullington, in the Horsham district of West Sussex, England. Storrington lies at the foot of the north side of the South Downs. As of 2021 it had a population of around 6,000. It has one main shopping street. The A283 road runs directly through the town and connects St…Storrington is a town and former civil parish, now in the parish of Storrington and Sullington, in the Horsham district of West Sussex, England. Storrington lies at the foot of the north side of the South Downs. As of 2021 it had a population of around 6,000. It has one main shopping street. The A283 road runs directly through the town and connects Storrington to Steyning in the east and Pulborough in the west. It is three miles west of Washington.