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Rock Island

County in Illinois (USA)

Contents: Population

The population development of Rock Island as well as related information and services (Wikipedia, Google, images).

Rock IslandCounty148,723149,374147,546144,672142,909
USA [United States of America]Federal Republic248,709,873281,421,906308,745,538331,449,281331,893,745

Source: U.S. Census Bureau (web).

Explanation: All population totals refer to 2020 boundaries. The 2021 gender and age figures are not fully based on results of the 2020 census.


Further information about the population structure:

Gender (E 2021)
Males70,750
Females72,159
Age Groups (E 2021)
0-17 years32,070
18-64 years81,996
65+ years28,843
Age Distribution (E 2021)
0-9 years17,253
10-19 years18,507
20-29 years17,249
30-39 years17,411
40-49 years16,665
50-59 years17,257
60-69 years18,953
70-79 years12,736
80+ years6,878
»Race« (C 2020)
White102,939
Black/African American16,607
Indigenous748
Asian4,089
Pacific Islander45
Some other7,552
2 or more12,692
Ethnicity (C 2020)
Hispanic or Latino19,842
Other124,830

See also:

Located in:


USA: Counties