There are 2 Post Offices in Union, Washington, serving a population of 272 people in an area of 2 square miles. There is 1 Post Office per 136 people, and 1 Post Office per square mile.
In Washington, Union is ranked 120th of 729 cities in Post Offices per capita, and 180th of 729 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Union Post Offices.
United States Government 310 East Dalby Road Union, WA
United States Postal Service 310 East Dalby Road Union, WA Mailbox Rental, Mailing Service, Postal Services