Citizens Lake is a small but productive 26-acre watershed impoundment owned by the City of Monmouth and managed for fishing by the Illinois Department of Natural Resources. Located in Warren County at the west edge of Monmouth along U.S. Route 34, this well-managed fishery consists of two distinct basins connected by a short channel spanned by a historic 1895 bridge. The south basin covers 17.7 acres with a maximum depth of 33 feet, while the north basin encompasses 8.3 acres with a maximum depth of 13 feet. With 1.4 miles of accessible shoreline and excellent fish populations maintained through annual stocking and drawdowns, Citizens Lake offers quality fishing opportunities for anglers of all skill levels.