Boston Spa (England)

Boston Spa is a village and civil parish in the Leeds Metropolitan District in West Yorkshire, England. Situated 3 miles (5 km) south of Wetherby, Boston Spa is on the south bank of the River Wharfe across from Thorp Arch. According to the 2001 census, the parish had a population of 4,006 rising to 4,079 in the 2011 census. The village grew in the 18th century around sulphur springs that briefly made it a spa town. Today it is best known for its association with the British Library, whose principal storage and document-supply campus, holding the majority of the United Kingdom's national collection, adjoins the village to the north-east at Thorp Arch and is known as the library's Boston Spa site. It sits in the Wetherby ward of Leeds City Council and the Wetherby and Easingwold parliamentary constituency.