👉 Collyweston is a town in the county of Dorset, England. It is located on the south coast of England, approximately 20 miles (32 km) north-west of London and 15 miles (24 km) east of Salisbury. Collyweston has a population of around 7,600 people as of 2021. Collyweston is known for its picturesque, sandy beaches, which are situated on the south coast of