STUMPERS CCXLVII

MISSISSIPPI  is an eleven-letter state that is spelled using only four letters of the alphabet - M, I, S, and P. Can you think of a well-known U.S. city of ten letters that is spelled using only three letters of the alphabet?

HINT:
It's state postal abbreviation is made up of two of those letters.

Answer:

WALLA WALLA, WA

Credit:
Will Shortz
NPR Weekend Edition Sunday Puzzle 
December 31,2017