Which states make up the US west coast & which states make up the east coast

Also, does anyone know of a good website to learn all the geography from?

West coast states are Washington, Oregon, and California. Just east of them are Idaho, Nevada, and Arizona.

East coast states, from the top, are Maine, New Hampshire, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Delaware, Maryland, Virginia, North Carolina, South Carolina, Georgia, and Florida. Just west of them are Vermont, Pennsylvania, West Virginia, and Alabama.