Hampden County is located in the western part of the state of Massachusetts. It is part of the Springfield Metropolitan Statistical Area and is known for its diverse communities and rich history. The county seat is Springfield, which is the largest city in the county and has a variety of cultural attractions. The county is home to several parks and recreational areas, including the Mount Tom State Reservation and the Connecticut River. Hampden County also features a mix of urban and rural environments, providing residents and visitors with various opportunities for outdoor activities and community events.