Forest Lake is an unincorporated community and census-designated place (CDP) in Ela Township of Lake County, Illinois, United States. It is about northwest of downtown Chicago. Per the 2020 census, the population was 1,784. The community was founded in 1935 as a vacation community for Chicago residents.
Geography Forest Lake is located in southwestern Lake County. It is bordered to the north, west, and south by Hawthorn Woods, and to the east and south by Kildeer. The village of Lake Zurich boundary comes within of the southwest corner of the CDP.
According to the 2021 census gazetteer files, Forest Lake has a total area of , of which (or 85.16%) is land and (or 14.84%) is water, consisting of the community's namesake water body.
Demographics
Racial and ethnic composition +Forest Lake CDP, Illinois – Racial and ethnic compositionRace / Ethnicity (NH = Non-Hispanic)Pop 2000Pop 2010% 2000% 2010White alone (NH)1,4121,4541,46892.29%87.64%82.29%Black or African American alone (NH)617120.39%1.02%0.67%Native American or Alaska Native alone (NH)0020.00%0.00%0.11%Asian alone (NH)1463790.92%3.80%4.43%Native Hawaiian or Pacific Islander alone (NH)0130.0%0.06%0.17%Other race alone (NH)0140.00%0.06%0.22%Mixed race or Multiracial (NH)249801.57%0.54%4.48%Hispanic or Latino (any race)741141364.84%6.87%7.62%Total1,5301,6591,784100.00%100.00%100.00%
2020 census As of the 2020 census, Forest Lake had a population of 1,784. The median age was 41.9 years. 24.5% of residents were under the age of 18 and 15.3% were 65 years of age or older. For every 100 females, there were 102.3 males, and for every 100 females age 18 and over, there were 101.3 males age 18 and over.
100.0% of residents lived in urban areas, while 0.0% lived in rural areas.
There were 662 households and 420 families residing in the CDP. Of all households, 33.8% had children under the age of 18 living in them, 64.8% were married-couple households, 15.9% were households with a male householder and no spouse or partner present, and 15.1% were households with a female householder and no spouse or partner present. 20.0% of households were made up of individuals, and 7.6% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 2.44.
The population density was . There were 681 housing units at an average density of . Of the 681 housing units, 2.8% were vacant. The homeowner vacancy rate was 0.7% and the rental vacancy rate was 4.4%.
Income and poverty The median income for a household in the CDP was $87,232, and the median income for a family was $105,588. Males had a median income of $56,597 versus $26,952 for females. The per capita income for the CDP was $42,782. About 0.0% of families and 3.0% of the population were below the poverty line, including 0.0% of those under age 18 and 18.6% of those age 65 or over. References