Banner is an unincorporated community in southern Sheridan County, Wyoming, United States. It lies along local roads near Interstate 90, south of the city of Sheridan, the county seat of Sheridan County. Its elevation is 4,580 feet (1,396 m), and it is located at 44°36′5″N 106°51′55″W﻿ / ﻿44.60139°N 106.86528°W﻿ / 44.60139; -106.86528 (44.6013609, -106.8653374). Although Banner is unincorporated, it has a post office, with the ZIP code of 82832. Public education in the community of Banner is provided by Sheridan County School District #2.