Beulah is a village in the U.S. state of Michigan and the county seat of Benzie County. The population was 342 at the 2010 census. It is located in Benzonia Township at the southeast end of Crystal Lake, about one mile north of Benzonia on U.S. Highway 31.Beulah was founded in 1880 by Charles E. Bailey. Its name comes from Isaiah 62:4. The Beulah post office was established in 1892.