How many states are part of the contiguous US which states are not contiguous?

Contiguous refers to states that are touching. Hawaii and Alaska are non-contiguous U.S. states because they do not touch any other state. Each of the 48 contiguous U.S. states touch at least one other state. The 48 contiguous U.S. states are Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, 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, Rhode Island, South Carolina, South Dakota, Texas, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin and Wyoming.