Mercer County, IL

Mercer County
Population: 16,957
Population Density: 30.2 per square mile

Water Area Percentage: 1.38% (7.86 square miles)
Land Area Percentage: 98.62% (561.02 square miles)
Total Area: 568.88 square miles
Housing Units: 7,109 per square mile

County Links

Waterfalls In Mercer County
• Boston Bay
• Sturgeon Bay

Lakes In Mercer County
• Fyre Lake

Cities In Mercer County
Aledo
Alexis
Illinois City
Joy
Keithsburg
Lynn Center
Matherville
Milan
New Boston
New Windsor
North Henderson
Preemption
Reynolds
Rio
Seaton
Sherrard
Viola