There are 6 US Post Offices in Kent County serving a total of 157,721 residents equating to 26,287 residents per post office. It's estimated that approximately 251,740 packages are handled across the 6 county post offices annually. Kent County is a county located in the U.S. state of Rhode Island. As of the 2010 census, the population was 166,158 making it the third-most populous county in Rhode Island. The county was formed in 1750 from the southern third of Providence County. It was named after the county of Kent, in England. Kent County, like other counties in Rhode Island, no longer has governmental functions (other than as court administrative and sheriff corrections boundaries). Kent 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."