States · Illinois · Lake County

Green Oaks, Illinois.

A village in Lake County. Zillow publishes no home prices for it: see Lake County’s.

Living in Green Oaks, Lake County, Illinois

Green Oaks is a village of 4,128 people in Lake County. Unemployment in Lake County was 3.8% in August 2026, and the county had 1.1% fewer jobs in 2025 than the year before. The most residents work in manufacturing, then schools and health care.

People 4,128 in the 2020 census
Household income Too few homes in Green Oaks for the Census survey to measure.
Unemployment 3.8% Lake County, August 2026; 4.6% a year before
Homes Too few homes in Green Oaks for the Census survey to measure.
  • 1,552households
  • 61%of adults have a degree
  • 6%below the poverty line
  • 31 mintypical commute
  • 28%work from home

What residents work in

  • Manufacturing22%
  • Schools, hospitals and social care17%
  • Professional and business services12%
  • Banks, insurance and property11%
  • Shops (retail)10%
  • Building trades10%

Employed residents by industry, from the Census survey. Lake County had 325,826 jobs in 2025, 1.1% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 30° and 16°; warmest in July, 82° and 63° 20° 40° 60° 80° J 30° 16° F M A M J J 82° 63° A S O N D
Average daily high and low for each month: coldest in January, 30° and 16°; warmest in July, 82° and 63° 20° 40° 60° 80° J 30° 16° F M A M J J 82° 63° A S O N D

Coldest in January, with highs near 30° and lows near 16°; warmest in July, with highs near 82° and lows near 63°.

Average daily high and low, 1991–2020, at the Waukegan weather station, 4 miles away (NOAA).

Largest workplaces in Green Oaks

  1. Peter Baker & Son CoRoad construction168
  2. Senior LifestyleAssisted-living facilities without on-site nursing care facilities149
  3. Oak Grove SD 68 Green OaksSchool district110FTE
  4. Green Oaks Senior LivingSenior citizens' homes without nursing care80
  5. Cedar Roofing CompanyRoofing contractor75
  6. Jessup Manufacturing Company - Lake BluffAdhesive tape made from purchased materials40
  7. SpherotechPolystyrene resins manufacturing39
  8. Kinnucan CompanyLandscape contractors38

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 10 workplaces with 20 or more staff, 675 people in all. School districts come from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. TornadoesRelatively high
  2. Cold wavesRelatively high
  3. Strong windrelatively high in parts of Green OaksRelatively moderate
  4. Inland floodingrelatively high in parts of Green OaksRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Green Oaks’ census tracts, against the rest of the country; all of them together, relatively low. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Lake County.