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Rock Island (IL) Streets, Geographical, Population & More

9th St
21st Ave
12th St
14th St
30th St
44th St
35th St
24th St
17th St
38th St
23rd Ave
43rd St
36th St
45th St
18th Ave
26th St
25th St
25th Ave
26th Ave
11th St
32nd St
31st St
22nd St
35th Ave
21st St
34th St
39th St
28th St
40th St
10th St

Population of Rock Island, Illinois

StateIllinois
Land Area (mi²)16.9 sq mi
Density (mi²)2,176.8/sq mi
2022 Growth Rate-0.52% (-191)
Growth Since 2020-2.46% (-925)
Rank in State50th
Rank in Country1218th

The population of Rock Island, IL in 2022 is estimated to be 36,726. This is a decrease of -0.52% (-191 people) compared to the population in 2021.

Population in Metro Area of Rock Island by Year

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

YearPopulationGrowthGrowth Rate

Population of Rock Island by Race

Population by Race
  • Total
  • Hispanic
  • Non-Hispanic
Race
Population
Percentage

Population of Rock Island by Age

Rock Island Population Pyramid 2022
Rock Island Median Age
35.8
Total
34.2
Male
37.6
Female
Rock Island Sex Ratio
48.86%
18,398
Male
51.14%
19,253
Female
Rock Island Age Dependency Ratio
26.8
Old Age Dependency Ratio
35.1
Child Dependency Ratio
Rock Island Adults
29,495
Adults
(6,227 of whom are seniors) in Rock Island.

Population of Rock Island by Year

Year
PopulationGrowthAnnual Growth Rate
Streets