Burlington is the most populous city in the U.S. state of Vermont. It is the shire town (seat) of Chittenden County. It lies 45 miles (72 km) south of the Canada-United States (Quebec-Vermont) border and 94 miles (151 km) south of Montreal. Burlington is the least populous city in the United States of America to be the largest city within a state. The city population was 42,211 according to a 2014 US Census Estimate. The municipality is the heart of the Burlington metropolitan area.
A regional college town, Burlington is home to the University of Vermont as well as two small private colleges, Burlington College and Champlain College. The state's largest hospital, the University of Vermont Medical Center, is located within the city limits. In early 2015, Burlington became the first city in the US to run completely on renewable energy.