Warren Township is a township in Lake County, Illinois, USA. As of the 2010 census, its population was 64,841. The cities of Gurnee, Gages Lake, Park City, Grayslake, Grandwood Park, and Wildwood lie within its borders. The township was established in 1850 by settlers who came from the town of Warren, New York. Both were named in honor of Major General Joseph Warren, killed at the Battle of Bunker Hill.
Warren Township covers an area of 36.76 square miles (95.2 km2); of this, 0.78 square miles (2.0 km2) or 2.03 percent is water. Lakes in this township include Gages Lake, Grandwood Lake, Twin Lakes and Valley Lake.
Cities and towns 
Adjacent townships 
The township contains seven cemeteries: Highland Memorial Park, Sant Sava Monastery, Serbian Monastery, Spaulding, Spaulding Corners, Swan Family and Warren.
Major highways 
Airports and landing strips 
- O John Clark RLA Airport (historical)
Railroad lines 
- ^ United States Census Bureau American FactFinder
- ^ "Gurnee History - Warren Township". The Village of Gurnee, IL. Retrieved 2007-08-02.
- ^ "Google Maps". Google. Retrieved 28 October 2012.
External links