Crystal Lake Flag

Crystal Lake

County:
McHenry County
County Seat:
No
Area (mi²):
18.985
State:
Illinois

Crystal Lake is a city located in McHenry County, Illinois. Crystal Lake has a 2026 population of 42,149. Crystal Lake is currently growing at a rate of 0.76% annually and its population has increased by 4.74% since the most recent census, which recorded a population of 40,240 in 2020.

The median household income in Crystal Lake is $108,418 with a poverty rate of 6.8%. The median age in Crystal Lake is 39.3 years: 38.6 years for males, and 39.7 years for females. For every 100 females there are 97.7 males.

42.1K
Total Population
2,220
Density (mi²)
318 0.76%
Growth

Crystal Lake Population

Crystal Lake Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202642,1493180.76%
202541,8313180.77%
202441,5135721.4%
202340,9412650.65%
202240,6761750.43%
202140,5012370.59%
202040,2404621.16%
201939,778-188-0.47%
201839,966-97-0.24%
201740,063-47-0.12%
201640,110-219-0.54%
201540,329-109-0.27%
201440,438620.15%
201340,376-93-0.23%
201240,469-147-0.36%
201140,616-148-0.36%
201040,764210.05%
200038,00013,48855.03%
199024,5125,92231.86%
198018,5904,04927.85%
197014,5416,22774.9%
19608,3143,48272.06%
19504,83291523.36%
19403,9171854.96%
19303,73200%

Median Age

Overall: 39.3 years
Female: 39.7 years
Male: 38.6 years

Crystal Lake Adults

There are 31,086 adults, (6,053 of whom are seniors) in Crystal Lake.

Sex Ratio

Female: 20,526 (50.6%)
Male: 20,053 (49.4%)

Demographics

The racial composition of Crystal Lake includes 81.02% White, 6.03% other race, 3.91% Asian, and smaller percentages for Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White32,87881.02%
Two or more races3,2878.1%
Other race2,4456.03%
Asian1,5863.91%
Black or African American2610.64%
Native American1220.3%
Race
Population ↓
Percentage (of total)
Other race2,3345.75%
Two or more races2,0184.97%
White1,1022.72%
Asian710.17%
Native American640.16%
Black or African American110.03%
Race
Population ↓
Percentage (of total)
White31,77678.31%
Asian1,5153.73%
Two or more races1,2693.13%
Black or African American2500.62%
Other race1110.27%
Native American580.14%

Crystal Lake Marital Status

Economics and Income Statistics

Crystal Lake 's average per capita income is $60,272. Household income levels show a median of $108,418. The poverty rate stands at 6.8%.

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$137,364-
Families$125,833$139,848
Households$108,418$124,939
Non Families$67,891$78,152

$60,272

Average Income

$108,418

Median Household Income

6.8%

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)