Post Offices in Shasta Lake, California, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Project City Post Office No Reviews Favorite Phone: (530) 275-9317Retail Hours Shasta Lake Post Office No Reviews Favorite Fax: (530) 275-8330Phone: (530) 275-8695Retail Hours Summit City Post Office No Reviews Favorite Phone: (530) 275-9574Retail Hours