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Green Oaks, Illinois
Administrative offices
Administrative offices
Community of Country Living
Location of Green Oaks in Lake County, Illinois.
Location of Green Oaks in Lake County, Illinois.
Location of Illinois in the United States
Location of Illinois in the United States
Country United States
State Illinois
County Lake
Township Libertyville
 • Total 4.10 sq mi (10.61 km2)
 • Land 3.99 sq mi (10.34 km2)
 • Water 0.10 sq mi (0.27 km2)
 • Total 4,128
 • Density 1,034.33/sq mi (399.36/km2)
Time zone UTC-6 (CST)
 • Summer (DST) UTC-5 (CDT)
ZIP Code(s)
Area code(s) 847
FIPS code 17-31446
Wikimedia Commons Green Oaks, Illinois

Green Oaks is a village in Libertyville Township, Lake County, Illinois, United States. The population was 3,866 at the 2010 census.


Green Oaks is located at 42°17′20″N 87°54′41″W / 42.28889°N 87.91139°W / 42.28889; -87.91139 (42.289106, -87.911499).

According to the 2010 census, Green Oaks has a total area of 4.123 square miles (10.68 km2), of which 4.02 square miles (10.41 km2) (or 97.5%) is land and 0.103 square miles (0.27 km2) (or 2.5%) is water.

Major streets

  • I-94.svg Tri-State Tollway
  • Illinois 137.svg Buckley Road
  • Illinois 176.svg Park Avenue/Rockland Road
  • O'Plaine Road
  • St. Mary's Road
  • Bradley Road
  • Atkinson Road


Historical population
Census Pop.
1960 198
1970 659 232.8%
1980 1,415 114.7%
1990 2,101 48.5%
2000 3,572 70.0%
2010 3,866 8.2%
U.S. Decennial Census

At the 2000 census, there were 3,572 people, 1,079 households and 977 families living in the village. The population density was 892.0 per square mile (344.8/km2). There were 1,109 housing units at an average density of 276.9 per square mile (107.0/km2). The racial makeup of the village was 90.85% White, 1.74% African American, 0.14% Native American, 5.46% Asian, 0.42% from other races, and 1.40% from two or more races. Hispanic or Latino of any race were 2.63% of the population.

There were 1,079 households, of which 52.5% had children under the age of 18 living with them, 86.2% were married couples living together, 3.4% had a female householder with no husband present, and 9.4% were non-families. 7.6% of all households were made up of individuals, and 2.2% had someone living alone who was 65 years of age or older. The average household size was 3.26 and the average family size was 3.44.

33.4% of the population were under the age of 18, 4.2% from 18 to 24, 28.1% from 25 to 44, 27.2% from 45 to 64, and 7.1% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 101.0 males. For every 100 females age 18 and over, there were 98.5 males.

According to the 2019 American Community Survey from the United States Census Bureau, the median household income was $165,625, and the median family income was $184,000. An estimated 4.5% of families and 7.0% of the population were below the poverty line, including 1.5% of those under age 18 and 11.0% of those age 65 or over.

As of the 2010 US Census, there were 3,866 people living in the village. The racial makeup of the village was 86.60% White, 1.40% African American, 0.05% Native American, 8.46% Asian, 0.62% from other races, and 2.87% from two or more races. Hispanic or Latino of any race were 3.31% of the population.

Green Oaks does not have a post office, and therefore all locations within the town are addressed to Libertyville, Illinois, Lake Forest, Illinois, and Lake Bluff, Illinois.

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