Map of Colona city, Illinois

Colona is a city in Henry County, Illinois, along the Green River. It is part of the Quad Cities metropolitan area. The population was 5,307 at the 2020 census, up from 5,099 at the 2010 census.

The City of Colona was created in 1997 by the merger of the former City of Green Rock and the former Village of Colona. It was the first community in Illinois to merge by popular vote.

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Geography

Colona is located at 41°28′32″N 90°20′56″W / 41.47556°N 90.34889°W / 41.47556; -90.34889 (41.475684, -90.348787). Colona lies near the Rock River in a valley, and is surrounded by higher land. This is where the Green River and Hennepin Canal flow into the Rock River (Mississippi River).

According to the 2010 census, Colona has a total area of 4.126 square miles (10.69 km), of which 4.02 square miles (10.41 km) (or 97.43%) is land and 0.106 square miles (0.27 km) (or 2.57%) is water.

See also