Talmage, IowaTalmage is an unincorporated community in Jones Township, Union County, Iowa, United States. Talmage is located along U.S. routes 34 and 169, east of Afton.HistoryFounded in the 1800s, Talmage's population was 42 in 1902, and 79 in 1925. The population was 120 in 1940.