There are 3 Post Offices in Wahkiakum County, Washington, serving a population of 4,105 people in an area of 264 square miles. There is 1 Post Office per 1,368 people, and 1 Post Office per 87 square miles.
In Washington, Wahkiakum County is ranked 6th of 39 counties in Post Offices per capita, and 15th of 39 counties in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Wahkiakum County Post Offices.
United States Postal Service 1391 West State Route 4 Skamokawa, WA Mailing Service, Postal Services
United States Postal Service 4182 State Route 4 West Rosburg, WA Mailing Service, Postal Services
United States Postal Service 30 River Street Cathlamet, WA Mailing Service, Postal Services