The following are lists of highways in the Interstate Highway System: List of primary Interstate Highways List of auxiliary Interstate Highways List of suffixed Interstate Highways List of business routes of the Interstate Highway System List of future Interstate Highways By state or territory Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming See also List of United States Numbered Highways