Grayslake Flag

Grayslake

County:
Lake County
County Seat:
No
Area (mi²):
10.914
State:
Illinois

Grayslake is a village located in Lake County, Illinois. Grayslake has a 2025 population of 20,779. Grayslake is currently declining at a rate of -0.42% annually and its population has decreased by -2.06% since the most recent census, which recorded a population of 21,216 in 2020.

The average household income in Grayslake is $139,637 with a poverty rate of 5.58%.The median age in Grayslake is 35.9 years: 34.9 years for males, and 36.8 years for females.

20.8K
Total Population
1,904
Density (mi²)
-87 -0.42%
Growth

Grayslake Population

Grayslake Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Grayslake includes 75.71% White, 8.56% Black or African American, 3.92% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White (75.7%)

Two or more races (9.3%)

Black or African American (8.6%)

Asian (3.9%)

Other race (2.0%)

Native American (0.5%)

Native Hawaiian or Pacific Islander (0.1%)

Race
Population
Percentage (of total)
White15,67875.71%
Two or more races1,9189.26%
Black or African American1,7738.56%
Asian8113.92%
Other race4131.99%
Native American1010.49%
Native Hawaiian or Pacific Islander130.06%

Grayslake Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grayslake's average per capita income is $69,633. Household income levels show a median of $113,697. The poverty rate stands at 5.58%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$153,858-
Families$139,280$155,759
Households$113,697$139,637
Non Families$66,406$92,212

$69,633

Average Income

$113,697

Median Household Income

5.58%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)