There are 2 Post Offices in Walla Walla, Washington, serving a population of 32,585 people in an area of 13 square miles. There is 1 Post Office per 16,292 people, and 1 Post Office per 6 square miles.
In Washington, Walla Walla is ranked 432nd of 729 cities in Post Offices per capita, and 406th of 729 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Walla Walla Post Offices.
United States Postal Service 500 Tausick Way Walla Walla, WA
United States Postal Service 128 North 2nd Avenue Walla Walla, WA Mailing Service, Postal Services