Rock Island County, Illinois demographics
Population: 144,694
Median age: 40.1
Median household income: 58,974
Demographics, population, home values, social and economic characteristics of Rock Island County, Illinois.
Population
| 2021 | 144,694 |
| 2020 | 142,801 |
| 2019 | 143,873 |
| 2018 | 145,275 |
| 2017 | 146,205 |
| 2016 | 146,536 |
| 2015 | 147,161 |
| 2014 | 146,964 |
| 2013 | 147,477 |
| 2012 | 147,504 |
| 2011 | 147,625 |
| 2010 | 147,524 |
| 2009 | 146,670 |
Rock Island County, IL cities
Andalusia village - 1,250
Carbon Cliff village - 1,975
Coal Valley village - 3,835
Cordova village - 730
Coyne Center CDP - 1,019
East Moline city - 21,181
Hampton village - 1,911
Hillsdale village - 532
Milan village - 5,096
Moline city - 42,660
Oak Grove village - 411
Port Byron village - 1,999
Rapids City village - 950
Reynolds village - 673
Rock Island city - 37,519
Rock Island Arsenal CDP - 331
Silvis city - 7,942
Census data for Rock Island County, Illinois
Demographic and housing estimates in Rock Island County, Illinois
| Total population | 144,694 |
| Male | 71,714 |
| Female | 72,980 |
| Total population | 144,694 |
| Under 5 years | 8,720 |
| 5 to 9 years | 8,881 |
| 10 to 14 years | 9,488 |
| 15 to 19 years | 9,391 |
| 20 to 24 years | 8,744 |
| 25 to 34 years | 17,496 |
| 35 to 44 years | 17,536 |
| 45 to 54 years | 16,851 |
| 55 to 59 years | 9,579 |
| 60 to 64 years | 10,106 |
| 65 to 74 years | 16,127 |
| 75 to 84 years | 8,235 |
| 85 years and over | 3,540 |
| Median age (years) | 40.1 |
| Under 18 years | 32,557 |
| 16 years and over | 115,941 |
| 18 years and over | 112,137 |
| 21 years and over | 106,190 |
| 62 years and over | 34,072 |
| 65 years and over | 27,902 |
| Total population | 144,694 |
| One race | 136,636 |
| White | 111,548 |
| Black or African American | 15,864 |
| American Indian and Alaska Native | 410 |
| Asian | 3,723 |
| Native Hawaiian and Other Pacific Islander | 222 |
| Some other race | 4,869 |
| Two or more races | 8,058 |
| Citizen, VOTING AGE 18 and over population | 106,218 |
| Male Citizen, VOTING AGE 18 and over population | 51,779 |
| Female Citizen, VOTING AGE 18 and over population | 54,439 |
Social characteristics in Rock Island County, Illinois
| Total households | 60,694 |
| Family households (families) | 26,804 |
| Married-couple family | 3,774 |
| Male householder, no wife present, family | 12,207 |
| Female householder, no husband present, family | 9,569 |
| Nonfamily households | 17,909 |
| Average household size | 20,242 |
| Average family size | 2.30 |
Economic characteristics in Rock Island County, Illinois
| Total households | 60,694 |
| Less than $10,000 | 3,965 |
| $10,000 to $14,999 | 2,876 |
| $15,000 to $24,999 | 5,293 |
| $25,000 to $34,999 | 5,814 |
| $35,000 to $49,999 | 7,468 |
| $50,000 to $74,999 | 11,592 |
| $75,000 to $99,999 | 8,492 |
| $100,000 to $149,999 | 9,514 |
| $150,000 to $199,999 | 3,361 |
| $200,000 or more | 2,319 |
| Median household income (dollars) | 58,974 |
Housing characteristics in Rock Island County, Illinois
| Total housing units | 66,667 |
| Occupied housing units | 60,694 |
| Vacant housing units | 5,973 |
| Total housing units | 66,667 |
| 1-unit, detached | 46,792 |
| 1-unit, attached | 3,120 |
| 2 units | 2,263 |
| 3 or 4 units | 2,365 |
| 5 to 9 units | 2,673 |
| 10 to 19 units | 3,008 |
| 20 or more units | 4,811 |
| Mobile home | 1,589 |
| Boat, RV, van, etc. | 46 |
| Total housing units | 66,667 |
| Built 2014 or later | 81 |
| Built 2010 to 2013 | 2,374 |
| Built 2000 to 2009 | 3,725 |
| Built 1990 to 1999 | 4,265 |
| Built 1980 to 1989 | 4,416 |
| Built 1970 to 1979 | 9,064 |
| Built 1960 to 1969 | 9,275 |
| Built 1950 to 1959 | 10,191 |
| Built 1940 to 1949 | 6,539 |
| Built 1939 or earlier | 16,737 |
| Total housing units | 66,667 |
| 1 room | 1,597 |
| 2 rooms | 1,762 |
| 3 rooms | 5,120 |
| 4 rooms | 10,475 |
| 5 rooms | 14,531 |
| 6 rooms | 12,416 |
| 7 rooms | 7,964 |
| 8 rooms | 5,734 |
| 9 rooms or more | 7,068 |
| Median rooms | 5.5 |
| Total housing units | 66,667 |
| No bedroom | 1,670 |
| 1 bedroom | 7,186 |
| 2 bedrooms | 20,863 |
| 3 bedrooms | 26,755 |
| 4 bedrooms | 8,244 |
| 5 or more bedrooms | 1,949 |
| Occupied housing units | 60,694 |
| Owner-occupied | 41,127 |
| Renter-occupied | 19,567 |
| Average household size of owner-occupied unit | 2.40 |
| Average household size of renter-occupied unit | 2.09 |
| Occupied housing units | 60,694 |
| Moved in 2017 or later | 5,640 |
| Moved in 2015 to 2016 | 16,198 |
| Moved in 2010 to 2014 | 9,438 |
| Moved in 2000 to 2009 | 12,557 |
| Moved in 1990 to 1999 | 7,450 |
| Moved in 1989 and earlier | 9,411 |
| Owner-occupied units | 41,127 |
| Less than $50,000 | 2,709 |
| $50,000 to $99,999 | 10,793 |
| $100,000 to $149,999 | 11,842 |
| $150,000 to $199,999 | 6,647 |
| $200,000 to $299,999 | 5,729 |
| $300,000 to $499,999 | 2,660 |
| $500,000 to $999,999 | 593 |
| $1,000,000 or more | 154 |
| Median (dollars) | 125,200 |
| Owner-occupied units | 41,127 |
| Housing units with a mortgage | 23,786 |
| Housing units without a mortgage | 17,341 |
| Occupied units paying rent | 18,540 |
| Less than $500 | 3,015 |
| $500 to $999 | 10,613 |
| $1,000 to $1,499 | 3,909 |
| $1,500 to $1,999 | 682 |
| $2,000 to $2,499 | 194 |
| $2,500 to $2,999 | 58 |
| $3,000 or more | 69 |
| Median (dollars) | 785 |
| No rent paid | 1,027 |
Demographic data for Rock Island County, IL and each city in the county. Lists of cities by population, wealth and poverty in Rock Island County, IL.
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