Illinois County Maps
Find Illinois county and township maps.
Lake County, Illinois
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Lake County, Illinois Map
An detailed map of Lake County. Click on a nearby County to view more information about that County.
Map of Townships in Lake County, Illinois
An interactive map of county subdivisions in Lake County. In Illinois, that can include Townships, Precincts, and Villages. Find what township you are in now.
Map of Counties in Illinois
An interactive map of Counties in Illinois. Click on a County to view more information about that County.
About Lake County, Illinois
Lake County is a county located in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat is Waukegan, the tenth-largest city in Illinois. The county is primarily suburban, with some urban areas and some rural areas. Due to its location, immediately north of Cook County, Lake County is one of the collar counties of the Chicago metropolitan area. Its northern boundary is the Wisconsin state line.
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This site has an interactive map of Illinois Counties. Click on the map to find your Illinois county, and view more details. You can also search for your address and use your GPS to find your Illinois County.
Find what County you are in, and see official Illinois County resources and information. Find any county in the United Stated, along with resources and links to official County websites. See a County map and local details. Looking for what county you are currently in? Find out on this map or use your device GPS to see what county you are in.