Lakes in Mercer County, Illinois      Dellitt Lake Fools Lake Frye Lake Glancey Lake Goose Pond Irwin Lake Karl Lake Lake Matherville Lake Nelson Lower Eliza Lake McCaw Pond Morrison Lake Renee Lake Swan Lake Swearingen Lake Upper Eliza Lake OTHER COUNTIES NEARBY Carroll County Fulton County Hancock County Henderson County Henry County Knox County Mason County Mcdonough County Peoria County Rock Island County Stark County Warren County Whiteside County Cedar County Clinton County Des Moines County Henry County Jackson County Johnson County Jones County Lee County Louisa County Muscatine County Scott County Washington County Illinois Lakes