New Milford is a town in southern Litchfield County, Connecticut, United States 14 miles (23 km) north of Danbury, on the Housatonic River. It is the largest town in the state in terms of land area at nearly 62 square miles (161 km). The population was 28,671 according to the Census Bureau's 2006 estimates. The town center is also listed as a census-designated place (CDP). New Milford is home to the Canterbury School, a well-known Roman Catholic boarding school.