Rio is a village in Knox County, Illinois, United States. It had a population of 209 at the 2020 census and is part of the Galesburg Micropolitan Statistical Area.
Rio is pronounced "Rye-Oh".
Geography
Rio is situated in the northwest corner of Knox County, north of Galesburg, the county seat. Like other rural neighbors, the village has rich soil ideal for farming corn and soybeans. A few small, unnamed creeks run through its outskirts, and a few small hills that coast under the streets of the village. A few sizable dropoffs throughout the land almost look like shallow or gradual cliffs as some local agricultural fields are rolling and steep. The land drains to North Henderson Creek, a west-flowing stream leading to Henderson Creek to the Mississippi River near Oquawka.
According to the 2021 census gazetteer files, Rio has a total area of , all land.
Demographics
As of the 2020 census