Post Offices in Westminster, California, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Bolsa Post Office No Reviews Favorite Phone: (714) 892-3232Retail Hours Goldenwest Post Office No Reviews Favorite Fax: (714) 373-4329Phone: (714) 892-3232Retail Hours Westminster Post Office No Reviews Favorite Fax: (714) 373-4329Phone: (714) 892-3232Retail Hours Westminster Mall Post Office No Reviews Favorite Fax: (714) 373-4329Phone: (714) 897-1033Retail Hours