The United States of America

Arizona
Otherwise known as The Gateway State...

Colorado
Otherwise known as The Airplane State...

Columbia
Otherwise known as The Capitol State...

East Virginia
Otherwise known as The Coin State...

Florida
Otherwise known as The 12-Gauge Shotgun State...

Hawai'i
Otherwise known as The Lava State...

Kansas
Otherwise known as The Wax State...

Maryland
Otherwise known as The Funny State...

Las Vegas
(See also: Las Vegas)

Reno
Quentin's Class teleported into Reno during POP #21, and rented a car to drive to Las Vegas.

Mentioned locations: Hot Rod Rentals, and Gerald the Crab (Reno's #1 Lawyer).

New Jersey
Otherwise known as The Pinball State...

New Mexico
Otherwise known as The Sword State...

Tennessee
Otherwise known as The Flamingo State...