Trowbridge is the county town of Wiltshire, England, situated on the River Biss in the west of the county, close to the border with Somerset. The town lies 8 miles (13 km) south-east of Bath, 31 miles (50 km) south-west of Swindon and 20 miles (32 km) south-east of Bristol. The parish had a population of 37,169 in 2021.