Alphabetically, the first state in the United States is Alabama, and the last state is Wyoming.
Alabama comes first because its name begins with 'A,' which is the first letter of the alphabet. Wyoming, on the other hand, is the last state because its name begins with 'W,' which is one of the last letters in the English alphabet.
This ordering is based on the alphabetical order of the states' names, and it's a common way to organize and reference states when needed.