Post Offices in Centralia, Washington, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Centralia Post Office No Reviews Favorite Fax: (651) 456-6599Phone: (360) 807-1169Retail Hours Centralia Carrier Annex Post Office No Reviews Favorite Fax: (651) 456-6598Phone: (360) 807-2144Retail Hours