| US Post Office--Newcastle Main | |
| Location: | W. Main St. and Sumner Ave., Newcastle, Wyoming |
| Coordinates: | 43.8553°N -104.2022°W |
| Built: | 1932 |
| Architect: | US Department of the Treasury; Office of Supervising Architect |
| Architecture: | Classical Revival |
| Added: | May 19, 1987 |
| Mpsub: | Historic US Post Offices in Wyoming, 1900--1941, TR |
| Refnum: | 87000791 |
The Newcastle Main Post Office is a historic post office building in Newcastle, Wyoming. Built in 1932, it was constructed as part of a facilities improvement program by the United States Post Office Department. The post office in Newcastle was nominated to the National Register of Historic Places as part of a thematic study comprising twelve Wyoming post offices built to standardized USPO plans in the early twentieth century.[1]