Rock Island, Illinois Population 2022

36,726
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Rock Island is a city located in Rock Island County Illinois. It is also the county seat of Rock Island County. With a 2020 population of 36,726, it is the 50th largest city in Illinois and the 1218th largest city in the United States. Rock Island is currently declining at a rate of -0.52% annually and its population has decreased by -2.46% since the most recent census, which recorded a population of 37,651 in 2020. Spanning over 17 miles, Rock Island has a population density of 2,177 people per square mile.

The average household income in Rock Island is $62,049 with a poverty rate of 21.53%. The median rental costs in recent years comes to $714 per month, and the median house value is $106,300. The median age in Rock Island is 36 years, 34.8 years for males, and 37.2 years for females.

Rock Island Demographics

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

  • White: 68.28%
  • Black or African American: 19.11%
  • Two or more races: 5.40%
  • Asian: 4.55%
  • Other race: 1.64%
  • Native Hawaiian or Pacific Islander: 0.52%
  • Native American: 0.51%
The current population of Rock Island, Illinois is 36,726 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 37,651.

Rock Island, Illinois Population 2022

2021 and 2022 population is estimated by projecting the 2019 numbers.

Rock Island Metro Area Population by Year

Population by Race

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Rock Island Population by Race

Rock Island Population Pyramid 2022

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Rock Island Median Age

35.8


Total

34.2


Male

37.6


Female

Rock Island Adults

There are 29,495 adults, (6,227 of whom are seniors) in Rock Island.

Rock Island Age Dependency

Age Dependency Ratio

26.8

Old Age Dependency Ratio

35.1

Child Dependency Ratio

Rock Island Sex Ratio

Female

19,253

51.14%

Male

18,398

48.86%

Rock Island Population by Age

Rock Island Renter vs Owner Occupied by Household Type

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Rock Island Household Types

61.4%

Rate of Home Ownership

Rock Island Households and Families

2.99

Average Family Size

2.24

Average Household Size

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Rock Island Households by Type

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Rock Island Educational Attainment by Sex (over 25)

Rock Island Educational Attainment by Race

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The highest rate of high school graduation is among white people with a rate of 93.53%.

The highest rate of bachelors degrees is among white people with a rate of 27.49%.

Rock Island Educational Attainment by Race

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$36,335

Average Earnings

$40,893

Average Male

$32,320

Average Female

Rock Island Earnings by Educational Attainment

Rock Island Language by Age

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Rock Island Language

85.88% of Rock Island residents speak only English, while 14.12% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.93% of the population.

Rock Island Language

Rock Island Poverty by Race

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21.53%

Overall Poverty Rate

21.45%

Male Poverty Rate

21.61%

Female Poverty Rate

Poverty in Rock Island

The race most likely to be in poverty in Rock Island is Asian, with 41.29% below the poverty level.

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

The poverty rate among those that worked full-time for the past 12 months was 4.77%. Among those working part-time, it was 25.98%, and for those that did not work, the poverty rate was 26.87%.

Rock Island Poverty

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Rock Island Poverty Rate by Education

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Rock Island Poverty Rate by Employment Status and Sex

Rock Island Income by Household Type

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Income by Household Type

Rock Island Marital Status

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Marriage Rates

37.9%

Overall Marriage Rate

39.1%

Male Marriage Rate

36.9%

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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2,040

Number of Veterans

Male Veterans

Female Veterans

Rock Island Veterans by War

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Rock Island Veterans by Age

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Rock Island Veterans by Race

Rock Island Veterans by Education

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9.99%

Veteran Poverty Rate

30.00%

Veteran Disability Rate

Rock Island Veterans by Education

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62.3%

Labor Force Participation

57.6%

Employment Rate

7.6%

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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62.05%

Born in Rock Island

90.14%

Native Born

9.86%

Foreign Born

5.54%

Non Citizen

4.31%

Naturalized

Place of Birth

90.14% of Rock Island residents were born in the United States, with 62.05% having been born in Illinois. 5.54% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Rock Island Place of Birth

Note: 2021 and 2022 data is projected

Rock Island Population by Year