Grayslake is a village in Lake County in the U.S. state of Illinois. It is located in the Chicago metropolitan area, about 40 miles (64 km) north of Chicago’s downtown, 14 miles (23 km) west of Lake Michigan, and 15 miles (24 km) south of the Wisconsin border. The village’s population at the 2010 census was 20,957.
Grayslake is located at 42°20′54″N 88°1′57″W / 42.34833°N 88.03250°W / 42.34833; -88.03250 (42.348271, -88.032428), in central Lake County. Neighboring communities include Libertyville, Mundelein, Round Lake Park, Hainesville, Round Lake Beach, Lindenhurst, Third Lake, Gages Lake and Wildwood. Grayslake is predominantly within the boundaries of Avon Township, with a small portion in Fremont Township.
According to the 2010 census, Grayslake has a total area of 10.078 square miles (26.10 km), of which 9.87 square miles (25.56 km) (or 97.94%) is land and 0.208 square miles (0.54 km) (or 2.06%) is water.
As of the special census of 2003, there were 20,330 people, 6,503 households, and 4,948 families residing in the village. The population density was 1,969.2 people per square mile (760.1/km²). There were 6,642 housing units at an average density of 706.8 per square mile (272.8/km²). The racial makeup of the village was 91.00% White, 1.58% African American, 0.19% Native American, 4.23% Asian, 0.03% Pacific Islander, 1.70% from other races, and 1.27% from two or more races. Hispanic or Latino of any race were 4.97% of the population.
There were 6,503 households out of which 48.6% had children under the age of 18 living with them, 66.3% were married couples living together, 7.4% had a female householder with no husband present, and 23.9% were non-families. 18.7% of all households were made up of individuals and 4.0% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.31.
In the village, the population was spread out with 33.1% under the age of 18, 5.6% from 18 to 24, 40.4% from 25 to 44, 16.3% from 45 to 64, and 4.5% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 96.2 males. For every 100 females age 18 and over, there were 93.4 males.
According to a 2007 estimate, the median income for a household in the village was $87,901, and the median income for a family was $100,746. Males had a median income of $60,857 versus $37,839 for females. The per capita income for the village was $28,898. About 2.4% of families and 3.0% of the population were below the poverty line, including 2.7% of those under age 18 and 3.2% of those age 65 or over.
As of the 2010 US Census, there were 20,957 people residing in the village. The racial makeup of the village was 83.73% White, 3.3% African American, 0.25% Native American, 6.75% Asian, 0.02% Pacific Islander, 3.42% from other races, and 2.52% from two or more races. Hispanic or Latino of any race were 8.84% of the population.