Crystal Lake, Illinois Population 2021

39,501
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Crystal Lake is a city located in McHenry County Illinois. With a 2020 population of 39,501, it is the 43rd largest city in Illinois and the 997th largest city in the United States . Crystal Lake is currently declining at a rate of -0.41% annually and its population has decreased by -3.05% since the most recent census, which recorded a population of 40,743 in 2010. Crystal Lake reached it's highest population of 40,766 in 2010. Spanning over 20 miles, Crystal Lake has a population density of 2,091 people per square mile.

The average household income in Crystal Lake is $105,609 with a poverty rate of 6.88%. The median rental costs in recent years comes to $1,274 per month, and the median house value is $221,300. The median age in Crystal Lake is 39.6 years, 38.8 years for males, and 40.2 years for females.

Crystal Lake Demographics

According to the most recent ACS, the racial composition of Crystal Lake was:

  • White: 92.75%
  • Asian: 2.53%
  • Two or more races: 1.76%
  • Black or African American: 1.55%
  • Other race: 1.24%
  • Native American: 0.18%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Crystal Lake, Illinois is 39,501 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 39,993.The last official US Census in 2010 recorded the population at 40,743.

Crystal Lake, Illinois Population 2021

Population by Race

Race Population Percentage
White37,07692.75%
Asian1,0102.53%
Two or More Races7021.76%
Black or African American6201.55%
Some Other Race4951.24%
American Indian and Alaska Native710.18%
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Crystal Lake Population by Race

Crystal Lake Population Pyramid $2021

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Crystal Lake Median Age

39.6


Total

38.8


Male

40.2


Female

Crystal Lake Adults

There are 30,370 adults, (5,381 of whom are seniors) in Crystal Lake.

Crystal Lake Age Dependency

60

Age Dependency Ratio

21.5

Old Age Dependency Ratio

38.4

Child Dependency Ratio

Crystal Lake Sex Ratio

Female

20,194

50.52%

Male

19,780

49.48%

Crystal Lake Population by Age

Crystal Lake Renter vs Owner Occupied by Household Type

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Crystal Lake Household Types

Type Owner Renter
Married86%14%
All75.5%24.5%
Male62.7%37.3%
Non Family61.1%38.9%
Female55.7%44.3%

75.5%

Rate of Home Ownership

Crystal Lake Households and Families

Type Count Average Size Owned
All14,6612.775.5
Married8,7773.2986
Non Family3,8791.261.1
Female1,3963.0155.7
Male6093.0662.7

3.18

Average Family Size

2.7

Average Household Size

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Crystal Lake Households by Type

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Education Attained Count Percentage
Less Than 9th Grade9233.39%
9th to 12th Grade7942.92%
High School Graduate5,79921.31%
Some College5,93721.82%
Associates Degree2,6599.77%
Bachelors Degree7,39027.16%
Graduate Degree3,70613.62%
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Crystal Lake Educational Attainment by Sex (over 25)

Crystal Lake Educational Attainment by Race

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Race Total High School Bachelors
White22,89822,13910,099
Hispanic2,8402,109371
Asian793570394
Black35435081
Other Race28321552
2+ Races228228123
Native American7171

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 53.95%.

Crystal Lake Educational Attainment by Race

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Name Average Male Female
Overall$51,054$63,514$39,711
Less Than 9th Grade$26,500$34,750$25,112
High School Graduate$41,891$47,792$30,941
Some College$45,140$60,735$35,719
Bachelors Degree$63,508$82,353$41,551
Graduate Degree$74,083$100,208$64,442

$51,054

Average Earnings

$63,514

Average Male

$39,711

Average Female

Crystal Lake Earnings by Educational Attainment

Crystal Lake Language by Age

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Crystal Lake Language

87.44% of Crystal Lake residents speak only English, while 12.56% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.37% of the population.

Crystal Lake Language

Crystal Lake Poverty by Race

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Name Total In Poverty Poverty Rate
White31,9511,3244.14%
Hispanic5,3191,16021.81%
Black58813923.64%
Asian1,010898.81%
Multiple702314.42%
Other495234.65%

6.88%

Overall Poverty Rate

6.80%

Male Poverty Rate

6.96%

Female Poverty Rate

Poverty in Crystal Lake

The race most likely to be in poverty in Crystal Lake is Black, with 23.64% below the poverty level.

The race least likely to be in poverty in Crystal Lake is White, with 4.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.98%. Among those working part-time, it was 9.37%, and for those that did not work, the poverty rate was 12.04%.

Crystal Lake Poverty

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Name Poverty
Less Than 9th Grade21.62%
High School11.72%
Some College4.18%
Bachelors or Greater1.57%

Crystal Lake Poverty Rate by Education

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Rate Poverty
Female Unemployed18.26%
Male Unemployed14.05%
Female Employed3.99%
Male Employed2.76%

Crystal Lake Poverty Rate by Employment Status and Sex

Crystal Lake Income by Household Type

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Name Median Mean
Households$87,578$105,609
Families$105,324$120,750
Married Families$116,011-
Non Families$47,184$59,451
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Income by Household Type

Crystal Lake Marital Status

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Marriage Rates

56.8%

Overall Marriage Rate

57.5%

Male Marriage Rate

56.1%

Female Marriage Rate

Crystal Lake Married by Age and Sex

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Crystal Lake Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 45-54.

Crystal Lake Marital Status by Race

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Crystal Lake Marital Status

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2,049

Number of Veterans

1,852

Male Veterans

197

Female Veterans

War Veterans
Vietnam555
First Gulf War436
Second Gulf War324
Korea208
World War II151

Crystal Lake Veterans by War

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Age Group Veterans
75+603
35 to 54460
65 to 74454
55 to 64390
18 to 34142

Crystal Lake Veterans by Age

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Name Veterans % of Total
White1,9897.05%
Hispanic993.04%
2+ Races204.65%
Other Race174.55%
Asian121.33%
Black112.91%

Crystal Lake Veterans by Race

Crystal Lake Veterans by Education

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6.76%

Veteran Poverty Rate

27.18%

Veteran Disability Rate

Crystal Lake Veterans by Education

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71.1%

Labor Force Participation

67.9%

Employment Rate

4.4%

Unemployment Rate

Crystal Lake Employment by Age

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Crystal Lake Employment by Race

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Crystal Lake Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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70.38%

Born in Crystal Lake

90.09%

Native Born

9.91%

Foreign Born

5.05%

Non Citizen

4.86%

Naturalized

Place of Birth

90.09% of Crystal Lake residents were born in the United States, with 70.38% having been born in Illinois. 5.05% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Crystal Lake Place of Birth

Year Population Growth Annual Growth Rate
202139,501-164-0.41%
202039,665-164-0.41%
201939,829-164-0.41%
201839,993-76-0.19%
201740,069-49-0.12%
201640,118-214-0.53%
201540,332-107-0.26%
201440,439640.16%
201340,375-94-0.23%
201240,469-149-0.37%
201140,618-148-0.36%
201040,7662,7660.71%
200038,00013,4884.48%
199024,5125,9222.80%
198018,5904,0492.49%
197014,5416,2275.75%
19608,3143,4825.58%
19504,8329152.12%
19403,9171850.48%
19303,7320.00%

Crystal Lake Population by Year