Bethesda, IowaBethesda is an unincorporated community in Douglas [Township, Page County, Iowa|Douglas Township], Page County, Iowa, United States. Bethesda is located along county highways M63 and J20, north-northwest of Clarinda.HistoryBethesda's population was 54 in 1902, and 25 in 1925. The population was 20 in 1940.