Lee County, Illinois Population 2021

Lee County, Illinois's estimated population is 33,696 with a growth rate of -0.59% in the past year according to the most recent United States census data. Lee County, Illinois is the 43rd largest county in Illinois. The 2010 Population was 35,983 and has seen a growth of -6.36% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202133,696-200-0.59%
202033,896-200-0.59%
201934,096-200-0.58%
201834,296-244-0.71%
201734,540460.13%
201634,494-27-0.08%
201534,521-389-1.11%
201434,910-211-0.60%
201335,121-95-0.27%
201235,216-393-1.10%
201135,609-374-1.04%
201035,9831,5914.63%
199034,392-1,936-5.33%
198036,328-1,619-4.27%
197037,947-802-2.07%
196038,7492,2986.30%
195036,4511,8475.34%
194034,6042,2757.04%
193032,3294,32515.44%
192028,0042540.92%
191027,750-2,144-7.17%
190029,8943,70714.16%
189026,187-1,304-4.74%
188027,4913201.18%
187027,1719,52053.93%
186017,65112,359233.54%
18505,2923,257160.05%
18402,0350.00%
2021 Growth Rate
-0.59%
County Website
Founded
February 27, 1839
County Seat
2010 Population
35,983
Growth Since 2010
-6.36%
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Lee County, Illinois Population Growth

Population by Race

Race Population Percentage
White31,13390.53%
Black or African American1,8815.47%
Two or More Races7022.04%
Some Other Race3571.04%
Asian1930.56%
American Indian and Alaska Native920.27%
Native Hawaiian and Other Pacific Islander310.09%
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Lee County, Illinois Population by Race

Lee County, Illinois Population Pyramid $2021

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Lee County, Illinois Median Age

43.2


Total

41.5


Male

44.9


Female

Lee County, Illinois Adults

There are 27,577 adults, (6,511 of whom are seniors) in Lee County, Illinois.

Lee County, Illinois Age Dependency

63.2

Age Dependency Ratio

30.9

Old Age Dependency Ratio

32.3

Child Dependency Ratio

Lee County, Illinois Sex Ratio

Female

16,090

46.79%

Male

18,299

53.21%

Lee County, Illinois Population by Age

Lee County, Illinois Renter vs Owner Occupied by Household Type

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Lee County, Illinois Household Types

Type Owner Renter
Married88.1%11.9%
All72.3%27.7%
Male68.4%31.6%
Female57.5%42.5%
Non Family56.6%43.4%

72.3%

Rate of Home Ownership

Lee County, Illinois Households and Families

Type Count Average Size Owned
All13,7882.2572.3
Married6,6742.8988.1
Non Family5,4091.256.6
Female1,2813.0757.5
Male4243.0568.4

2.85

Average Family Size

2.25

Average Household Size

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Lee County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade5812.33%
9th to 12th Grade2,2238.90%
High School Graduate8,44633.81%
Some College6,57926.34%
Associates Degree2,60210.42%
Bachelors Degree2,81911.29%
Graduate Degree1,7286.92%
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Lee County, Illinois Educational Attainment by Sex (over 25)

Lee County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White21,76420,0634,222
Black1,49193686
Hispanic1,282802133
2+ Races26321846
Other Race251110
Asian14913558
Native American907810
Islander313131

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

The highest rate of bachelors degrees is among islander people with a rate of 100.00%.

Lee County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$38,527$48,178$30,196
Less Than 9th Grade$23,810$21,953$28,240
High School Graduate$34,138$39,696$25,067
Some College$38,399$54,059$27,302
Bachelors Degree$49,370$65,917$38,920
Graduate Degree$72,063$95,742$63,125

$38,527

Average Earnings

$48,178

Average Male

$30,196

Average Female

Lee County, Illinois Earnings by Educational Attainment

Lee County, Illinois Language by Age

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Lee County, Illinois Language

95.21% of Lee County, Illinois residents speak only English, while 4.79% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.42% of the population.

Lee County, Illinois Language

Lee County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White28,2913,50612.39%
Hispanic1,57317711.25%
Black51812524.13%
Other33111334.14%
Multiple607589.56%
Native921819.57%

12.49%

Overall Poverty Rate

11.12%

Male Poverty Rate

13.82%

Female Poverty Rate

Poverty in Lee County, Illinois

The race most likely to be in poverty in Lee County, Illinois is Other, with 34.14% below the poverty level.

The race least likely to be in poverty in Lee County, Illinois is Multiple, with 9.56% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.44%. Among those working part-time, it was 16.53%, and for those that did not work, the poverty rate was 19.77%.

Lee County, Illinois Poverty

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Name Poverty
Less Than 9th Grade27.06%
Some College12.61%
High School10.15%
Bachelors or Greater2.96%

Lee County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed31.46%
Male Unemployed22.77%
Female Employed8.66%
Male Employed4.68%

Lee County, Illinois Poverty Rate by Employment Status and Sex

Lee County, Illinois Income by Household Type

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Name Median Mean
Households$58,194$73,903
Families$75,617$91,639
Married Families$85,673-
Non Families$32,307$42,957
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Income by Household Type

Lee County, Illinois Marital Status

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Marriage Rates

49.8%

Overall Marriage Rate

47.9%

Male Marriage Rate

52.0%

Female Marriage Rate

Lee County, Illinois Married by Age and Sex

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Lee County, Illinois Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

Lee County, Illinois Marital Status by Race

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Lee County, Illinois Marital Status

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2,056

Number of Veterans

1,924

Male Veterans

132

Female Veterans

War Veterans
Vietnam732
First Gulf War269
Korea219
Second Gulf War213
World War II30

Lee County, Illinois Veterans by War

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Age Group Veterans
75+551
65 to 74551
35 to 54478
55 to 64362
18 to 34114

Lee County, Illinois Veterans by Age

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Name Veterans % of Total
White1,9717.90%
Black543.27%
Islander1754.84%
Hispanic150.99%
2+ Races112.86%
Other Race30.98%

Lee County, Illinois Veterans by Race

Lee County, Illinois Veterans by Education

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7.79%

Veteran Poverty Rate

31.12%

Veteran Disability Rate

Lee County, Illinois Veterans by Education

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56.3%

Labor Force Participation

54.4%

Employment Rate

3.5%

Unemployment Rate

Lee County, Illinois Employment by Age

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Lee County, Illinois Employment by Race

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Lee County, Illinois 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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81.34%

Born in Lee County, Illinois

97.49%

Native Born

2.51%

Foreign Born

1.22%

Non Citizen

1.29%

Naturalized

Place of Birth

97.49% of Lee County, Illinois residents were born in the United States, with 81.34% having been born in Illinois. 1.22% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Lee County, Illinois Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources