Post Offices in Lewisville, Texas, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Lewisville Post Office No Reviews Favorite Fax: (972) 436-7230Phone: (972) 353-0056Retail Hours Old Town Finance Post Office No Reviews Favorite Fax: (972) 436-7230Phone: (972) 353-0056Retail Hours