The Borough of Broxbourne is a local government district and borough in Hertfordshire, England. Its council is based in Cheshunt, other towns include Broxbourne, Hoddesdon and Waltham Cross. The eastern boundary of the district is the River Lea. The borough covers 20 square miles (52 km2) in south east Hertfordshire having a population of about 96,000. The borough was formed on 1 April 1974 by the merger of Cheshunt and Hoddesdon urban districts. The borough is twinned with the Sicilian city of Sutera.