There are 37 US Post Offices in Bristol County serving a total of 604,208 residents equating to 16,330 residents per post office. It's estimated that approximately 964,383 packages are handled across the 37 county post offices annually. Bristol County is a county located in the Commonwealth of Massachusetts. As of the 2010 census, the population was 548,285. The county seat is Taunton. Some governmental functions are performed by the Commonwealth of Massachusetts, others by the county, and others by local towns and cities. See Administrative divisions of Massachusetts. The property deed records are kept in Taunton, Attleboro, Fall River, and New Bedford. Bristol County is included in the Providence-Warwick, RI-MA Metropolitan Statistical Area, which is also included in the Boston-Worcester-Providence, MA-RI-NH-CT Combined Statistical Area. The county is adjacent to the state of Rhode Island. The adjacent counties are Plymouth County, Norfolk County, Bristol County, Rhode Island, Newport County, Rhode Island, Providence County, Rhode Island, and Dukes County."