Warren Township is a township in Lake County, Illinois, USA. As of the 2020 census, its population was 65,883. The cities of Gurnee, Park City, and Grayslake 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.

History

Geography

Warren Township covers an area of 36.77 sqmi; of this, 0.78 sqmi or 2.03 percent is water. Lakes in this township include Gages Lake, Grandwood Lake, Twin Lakes and Valley Lake.

Cities and towns

Census-designated place

Adjacent townships

Cemeteries

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

Railroad lines

Demographics

As of the 2020 census, there were 65,883 people living in the township. The population density was approximately 1,800/sq mi (690/km2). There were 25,853 housing units. The racial makeup of the township was 55.8% White, 12.2% Asian, 9.1% Black or African American, 0.9% American Indian or Alaska Native, 0.1% Native Hawaiian or Pacific Islander, 10.8% from other races, and 11.2% from two or more races. Hispanic or Latino of any race were 22.8% of the population. The median age in the township was 38.8 years. 23.4% of the population was under 18 years, and 10.8% were 65 years and over. There were 25,747 households, out of which 28.5% had people under the age of 18 living with them and 27.7% had people 65 years and older living with them. 54% of households were married couples living together, 23.5% had a female householder with no spouse present, 13.1% had a male householder with no spouse present, and 9.3% were cohabiting couples living together. The average household size was 2.54 and the average family size was 3.10. The median income for a household in the township was $86,649, and the median income for a family was $116,845. 7.4% of residents were below the poverty line.