WMPC (1230 AM) is a radio station broadcasting a Religious format. Licensed to Lapeer, Michigan, it first began broadcasting in 1926. WMPC is owned and operated by the Calvary Bible Church of Lapeer, Michigan. The station began broadcasting on December 6, 1926 from a homemade transmitter in the Methodist Protestant Church. Later the church changed its name to the Calvary Bible Church.
WMPC is the oldest continuously operating Christian radio station in the United States. It has only had four managers over the years; Rev. Frank S. Hemingway, Rev. Arnold Bracy, Bob Baldwin, and the current manager, Ed LeVoir.
Gospel 1230 WMPC plays a mix of inspirational music and God honoring programs, which continue to meet the needs of listeners in Lapeer, Flint, Imlay City and Northern Oakland County.
WMPC is non-commercial and holds a Sharathon twice a year (in the Spring and Fall) to raise the revenue needed to continue broadcasting. The Fall Sharathon was added in 2012 and it includes a family festival, with games, food, and a bouncehouse.