Chippenham is a market town in north-west Wiltshire, England. It lies 13 miles (21 km) north-east of Bath, 86 miles (138 km) west of London and is near the Cotswolds Area of Outstanding Natural Beauty. The town was established on a crossing of the River Avon, where some form of settlement is believed to have existed since before Roman times. It was a royal vill and probably a royal hunting lodge, under Alfred the Great. The town continued to grow when the Great Western Railway arrived in 1841. It had a population of 36,548 in 2021.