U.S. Federal Route 6 runs east-west across Providence County. This is the only county that U.S. Rt. 6 passes through while in Rhode Island. It enters from Massachusetts, at East Providence, and runs to the Connecticut State Line, near Foster. U.S. Rt. 6 passes through the following towns in Providence County. East Providence Providence Johnston Scituate South Foster U.S. Rt. 6 is multi-plexed in Providence County. U.S. Rt. 1A, from East Providence to Providence. Interstate 195, from East Providence to Providence.