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

Airports
GENESIS MEDICAL CTR-ALEDO
MAAS AIRSTRIP
MERCER COUNTY
WEIHLER
YOUNG