Rock Island, Illinois Population 2021

36,666
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Rock Island Demographics

According to the most recent ACS, the racial composition of Rock Island was:

  • White: 69.49%
  • Black or African American: 20.41%
  • Asian: 4.11%
  • Two or more races: 3.91%
  • Other race: 1.46%
  • Native American: 0.50%
  • Native Hawaiian or Pacific Islander: 0.11%
The current population of Rock Island, Illinois is 36,666based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 37,431.The last official US Census in 2010 recorded the population at 39,018.

Rock Island, Illinois Population 2021

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Population Growth Annual Growth Rate
2021377,428-872-0.23%
2020378,300-872-0.23%
2019379,172-872-0.23%
2018380,044-1,059-0.28%
2017381,103-1,075-0.28%
2016382,178-1,203-0.31%
2015383,381-689-0.18%
2014384,0702270.06%
2013383,8431,4120.37%
2012382,4311,7460.46%
2011380,6859420.25%
2010379,7430.00%

Rock Island Metro Area Population by Year

Population by Race

Race Population Percentage
White26,48469.49%
Black or African American7,77920.41%
Asian1,5654.11%
Two or More Races1,4923.91%
Some Other Race5571.46%
American Indian and Alaska Native1910.50%
Native Hawaiian and Other Pacific Islander430.11%
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Rock Island Population By Race

Rock Island Population Pyramid 2021

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Rock Island Median Age

36


Total

34.8


Male

37.2


Female

Rock Island Adults

There are 29,810 adults, (6,186 of whom are seniors) in Rock Island.

Rock Island Age Dependency

61.3

Age Dependency Ratio

26.2

Old Age Dependency Ratio

35.1

Child Dependency Ratio

Rock Island Sex Ratio

Mujer

19,539

51.27%

Masculino

18,572

48.73%

Rock Island Population by Age

Rock Island Renter vs Owner Occupied by Household Type

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Rock Island Household Types

Type Owner Renter
Married79.6%20.4%
All61.3%38.7%
Masculino56.9%43.1%
Non Family54%46%
Mujer39.9%60.1%

61.3%

Rate of Home Ownership

Rock Island Households and Families

Type Count Average Size Owned
All15,5512.2661.3
Non Family6,5281.2254
Married5,7232.9379.6
Mujer2,5113.239.9
Masculino7893.0556.9

2.94

Average Family Size

2.26

Average Household Size

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Rock Island Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,1144.59%
9th to 12th Grade2,1048.67%
High School Graduate6,76027.85%
Some College6,49826.77%
Associates Degree2,2969.46%
Bachelors Degree3,63914.99%
Graduate Degree1,8627.67%
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Rock Island Educational Attainment by Sex (over 25)

Rock Island Educational Attainment by Race

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Race Total High School Bachelors
White16,79115,6284,627
Black4,2493,174401
Hispanic1,9731,391252
Asian762435130
2+ Races43837165
Other Race31420550
Native American17215315
Islander1111

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 white people with a rate of 27.56%.

Rock Island Educational Attainment by Race

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Name Average Masculino Mujer
Overall$35,304$41,526$30,969
Less Than 9th Grade$25,061$26,587$16,989
High School Graduate$28,193$31,785$21,151
Some College$34,815$43,148$30,243
Bachelors Degree$48,904$57,011$41,964
Graduate Degree$66,644$69,286$65,912

$35,304

Average Earnings

$41,526

Average Male

$30,969

Average Female

Rock Island Earnings by Educational Attainment

Rock Island Language by Age

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Rock Island Language

86.06% of Rock Island residents speak only English, while 13.94% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.45% of the population.

Rock Island Language

Rock Island Poverty by Race

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Name Total In Poverty Poverty Rate
White21,6402,91513.47%
Black7,4762,80937.57%
Hispanic3,94687622.20%
Multiple1,38655640.12%
Asian1,36644832.80%
Other54720036.56%
Native1853217.30%
Islander432762.79%

21.09%

Overall Poverty Rate

18.50%

Male Poverty Rate

23.52%

Female Poverty Rate

Poverty in Rock Island

The race most likely to be in poverty in Rock Island is Islander, with 62.79% below the poverty level.

The race least likely to be in poverty in Rock Island is White, with 13.47% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.12%. Among those working part-time, it was 25.66%, and for those that did not work, the poverty rate was 27.03%.

Rock Island Poverty

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Name Poverty
Less Than 9th Grade35.84%
High School17.52%
Some College10.58%
Bachelors or Greater4.08%

Rock Island Poverty Rate by Education

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Name Poverty
Female Unemployed59.97%
Male Unemployed33.48%
Female Employed12.37%
Male Employed7.29%

Rock Island Poverty Rate by Employment Status and Sex

Rock Island Income by Household Type

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Name Median Mean
Households$48,680$62,049
Families$61,951$73,354
Married Families$80,446-
Non Families$35,538$44,475
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Income by Household Type

Rock Island Marital Status

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Marriage Rates

38.9%

Overall Marriage Rate

39.4%

Male Marriage Rate

38.4%

Female Marriage Rate

Rock Island Married by Age and Sex

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Rock Island 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.

Rock Island Marital Status by Race

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Rock Island Marital Status

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2,348

Number of Veterans

2,104

Male Veterans

244

Female Veterans

War Veterans
Vietnam698
First Gulf War396
Second Gulf War305
Korea183
World War II153

Rock Island Veterans by War

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Age Group Veterans
75+623
55 to 64581
65 to 74541
35 to 54502
18 to 34101

Rock Island Veterans by Age

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Name Veterans % of Total
White2,0159.08%
Black2745.28%
Hispanic692.59%
2+ Races344.65%
Native American137.10%
Asian121.10%

Rock Island Veterans by Race

Rock Island Veterans by Education

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9.04%

Veteran Poverty Rate

28.75%

Veteran Disability Rate

Rock Island Veterans by Education

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63.6%

Labor Force Participation

58.5%

Employment Rate

7.9%

Unemployment Rate

Rock Island Employment by Age

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Rock Island Employment by Race

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Rock Island 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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61.34%

Born in Rock Island

90.00%

Native Born

10.00%

Foreign Born

6.07%

Non Citizen

3.93%

Naturalized

Place of Birth

90.00% of Rock Island residents were born in the United States, with 61.34% having been born in Illinois. 6.07% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Rock Island Place of Birth

Year Population Growth Annual Growth Rate
202136,666-255-0.69%
202036,921-255-0.69%
201937,176-255-0.68%
201837,431-381-1.01%
201737,812-348-0.91%
201638,160-370-0.96%
201538,530-248-0.64%
201438,778-118-0.30%
201338,896-36-0.09%
201238,932-47-0.12%
201138,97910.00%
201038,978-706-0.18%
200039,684-868-0.22%
199040,552-6,269-1.43%
198046,821-3,345-0.69%
197050,166-1,697-0.33%
196051,8633,1530.63%
195048,7105,9351.31%
194042,7754,8221.20%
193037,9532,7760.76%
192035,17710,8423.75%
191024,3354,8422.24%
190019,4935,8593.64%
189013,6341,9751.58%
188011,6593,7693.98%
18707,8902,7604.40%
18605,1300.00%

Rock Island Population by Year