Monroe Precinct is located in Hardin County, Illinois, USA.

[3] As of the 2020 census[2] there were 580 people, 187 households, and 120 families residing in the precinct.

There were 318 housing units at an average density of 6.37 per square mile (2.46/km2).

30.50% of all households were made up of individuals, and 16.00% had someone living alone who was 65 years of age or older.

This Hardin County, Illinois location article is a stub.