Branchville is a neighborhood of the town of Ridgefield in Fairfield County, Connecticut, United States, and is also the name of a Metro North railroad station. Branchville was listed as a census-designated place prior to the 2020 census. Some people consider Branchville a part of Georgetown, an adjoining, non-incorporated community at the intersection of Redding, Ridgefield, Wilton and Weston, noting many residences and businesses there share Georgetown's 544- telephone number exchange.