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Bangor is an unincorporated community in Marshall County, Iowa, United States. It is located at the intersections of County Highway E18 and S62, five miles southwest of Liscomb and six miles south of Union. It is located near the west bank of the Iowa River, at 42.172838N, -93.089073W.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- Battin, William (1912). Past and Present of Marshall County, Iowa, Volume 1. Brookhaven Press. p. 172.
- The History of Marshall County, Iowa: Containing a History of the County, Its Cities, Towns, &c. Western Historical Co. 1878. p. 542.
- Savage, Tom (2007). A Dictionary of Iowa Place-Names, p. 33. University Of Iowa Press. ISBN 1-58729-531-8.