Post Offices in Moraga, California, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Moraga Post Office No Reviews Favorite Fax: (925) 376-8458Phone: (925) 376-9012Retail Hours Saint Marys College Post Office No Reviews Favorite Phone: (925) 376-0739Retail Hours