Two Branch Island is an island in the Mississippi River. The island is entirely within St. Charles County, Missouri.
The island most likely was so named on account of its location between two tributaries of the Mississippi River.
References
- U.S. Geological Survey Geographic Names Information System: Two Branch Island
- "St. Charles County Place Names, 1928–1945". The State Historical Society of Missouri. Archived from the original on June 24, 2016. Retrieved November 27, 2016.
38°52′30″N 90°36′22″W / 38.875°N 90.606°W / 38.875; -90.606
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