Horncastle is an English market town as well as civil parish in Lincolnshire, 17 miles (27 km) east of the county town of Lincoln. It had a population of 6,815 according to the 2011 Census. An area of the ancient Roman walls remains. Lincolnshire Integrated Voluntary Emergency Service is based at the Boston Road Industrial Estate. The Lincolnshire Wildlife Trust is based in Banovallum House. Mortons of Horncastle is a significant national magazine author of timeless bikes, aeronautics as well as roadway transportation heritage titles, situated in the south of the town on the industrial estate off the A153 (Boston Road). Since the late 20th century, the populace has actually enhanced to 6,815 in 2011, its highest ever before. Historically, the civil parish suffered a decline in population from the mid-19th to mid-20th century, as urbanisation and also modifications in agriculture brought in individuals to cities where more job was available.