You can also explore the 8291 license plate designs currently available in the U.S. To build his database, Keegan had to compile all the designs from each state’s (and Washington, D.C.’s) motor vehicle agency. If you live in Washington state, you can purchase a plate covered in musical notes and the phrase Music Matters. In fact, Keegan found that Maryland has the most plate designs of any state: 989, to be exact, nearly twice as many as runner-up Texas (476).