Chicopee (pronounced /?t??k?pi/ CHIK-?-pee) is a city located on the Connecticut River in Hampden County, Massachusetts, United States of America. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. As of the 2007 census, the city had a total population of 54,653, making it the second largest city in Western Massachusetts. The current mayor is Michael D. Bissonnette.