Worcester is a city in Worcester County, Massachusetts, United States. Named after Worcester, England, the city had a population of 182,596, making it the estimated second largest city in New England. It is the county seat of Worcester County. Worcester is located approximately 40 miles west of Boston, and marks the western periphery of the Boston-Worcester-Manchester (MA-RI-NH) U.S. Census Combined Statistical Area (CSA). Due to its location in Central Massachusetts, Worcester is often referred to as the "Heart of the Commonwealth. " The city is also noted for its mill era Victorian architecture.