Population by Age in Rock Island County
*Base on 2010 Data
| Total population | 147,546 | 100.00% |
| Under 5 years | 9,465 | 6.41% |
| 5 to 9 years | 8,983 | 6.09% |
| 10 to 14 years | 9,132 | 6.19% |
| 15 to 19 years | 9,722 | 6.59% |
| 20 to 24 years | 9,468 | 6.42% |
| 25 to 29 years | 9,417 | 6.38% |
| 30 to 34 years | 9,045 | 6.13% |
| 35 to 39 years | 8,606 | 5.83% |
| 40 to 44 years | 8,853 | 6.00% |
| 45 to 49 years | 10,131 | 6.87% |
| 50 to 54 years | 11,295 | 7.66% |
| 55 to 59 years | 10,497 | 7.11% |
| 60 to 64 years | 9,051 | 6.13% |
| 65 to 69 years | 6,840 | 4.64% |
| 70 to 74 years | 5,363 | 3.63% |
| 75 to 79 years | 4,288 | 2.91% |
| 80 to 84 years | 3,688 | 2.50% |
| 85 years and over | 3,702 | 2.51% |
Male Population in Rock Island County
*Base on 2010 Data
| Male population | 72,375 | 49.05% |
| Under 5 years | 4,855 | 3.29% |
| 5 to 9 years | 4,664 | 3.16% |
| 10 to 14 years | 4,647 | 3.15% |
| 15 to 19 years | 4,878 | 3.31% |
| 20 to 24 years | 4,704 | 3.19% |
| 25 to 29 years | 4,767 | 3.23% |
| 30 to 34 years | 4,695 | 3.18% |
| 35 to 39 years | 4,337 | 2.94% |
| 40 to 44 years | 4,518 | 3.06% |
| 45 to 49 years | 4,993 | 3.38% |
| 50 to 54 years | 5,583 | 3.78% |
| 55 to 59 years | 5,170 | 3.50% |
| 60 to 64 years | 4,364 | 2.96% |
| 65 to 69 years | 3,317 | 2.25% |
| 70 to 74 years | 2,478 | 1.68% |
| 75 to 79 years | 1,831 | 1.24% |
| 80 to 84 years | 1,449 | 0.98% |
| 85 years and over | 1,125 | 0.76% |
Female Population in Rock Island County
*Base on 2010 Data
| Female population | 75,171 | 50.95% |
| Under 5 years | 4,610 | 3.12% |
| 5 to 9 years | 4,319 | 2.93% |
| 10 to 14 years | 4,485 | 3.04% |
| 15 to 19 years | 4,844 | 3.28% |
| 20 to 24 years | 4,764 | 3.23% |
| 25 to 29 years | 4,650 | 3.15% |
| 30 to 34 years | 4,350 | 2.95% |
| 35 to 39 years | 4,269 | 2.89% |
| 40 to 44 years | 4,335 | 2.94% |
| 45 to 49 years | 5,138 | 3.48% |
| 50 to 54 years | 5,712 | 3.87% |
| 55 to 59 years | 5,327 | 3.61% |
| 60 to 64 years | 4,687 | 3.18% |
| 65 to 69 years | 3,523 | 2.39% |
| 70 to 74 years | 2,885 | 1.96% |
| 75 to 79 years | 2,457 | 1.67% |
| 80 to 84 years | 2,239 | 1.52% |
| 85 years and over | 2,577 | 1.75% |
Median Age in Rock Island County
*Base on 2010 Data
| Both | 40.00% | |
| Male | 38.50% | |
| Female | 41.50% |
Race in Rock Island County
*Base on 2010 Data
| Total | 147,546 | 100.00% |
| Population of one race | 143,088 | 96.98% |
| White | 120,382 | 81.59% |
| Black or African American | 13,289 | 9.01% |
| American Indian and Alaska Native | 395 | 0.27% |
| Asian | 2,419 | 1.64% |
| Asian Indian | 980 | 0.66% |
| Chinese | 177 | 0.12% |
| Filipino | 168 | 0.11% |
| Japanese | 46 | 0.03% |
| Korean | 114 | 0.08% |
| Vietnamese | 183 | 0.12% |
| Other Asian | 751 | 0.51% |
| Native Hawaiian and Other Pacific Islander | 48 | 0.03% |
| Native Hawaiian | 4 | 0.00% |
| Guamanian or Chamorro | 7 | 0.00% |
| Samoan | 21 | 0.01% |
| Other Pacific Islander | 16 | 0.01% |
| Some Other Race | 6,555 | 4.44% |
| Population of Two or More Races | 4,458 | 3.02% |
| White; American Indian and Alaska Native | 536 | 0.36% |
| White; Asian | 400 | 0.27% |
| White; Black or African American | 1,831 | 1.24% |
| White; Some Other Race | 762 | 0.52% |
The Population 16 Years in Rock Island County
*Base on 2010 Data
| Total | 118,139 | 100.00% |
| Male | 57,266 | 48.47% |
| Female | 60,873 | 51.53% |
The Population 18 Years in Rock Island County
*Base on 2010 Data
| Total | 114,359 | 100.00% |
| Male | 55,375 | 48.42% |
| Female | 58,984 | 51.58% |
The Population 21 Years in Rock Island County
*Base on 2010 Data
| Total | 108,133 | 100.00% |
| Male | 52,278 | 48.35% |
| Female | 55,855 | 51.65% |
The Population 62 Years in Rock Island County
*Base on 2010 Data
| Total | 29,110 | 100.00% |
| Male | 12,706 | 43.65% |
| Female | 16,404 | 56.35% |
The Population 65 Years in Rock Island County
*Base on 2010 Data
| Total | 23,881 | 100.00% |
| Male | 10,200 | 42.71% |
| Female | 13,681 | 57.29% |
Race (total races tallied) in Rock Island County
*Base on 2010 Data
| White alone or in combination with one or more other races | 124,187 | 81.55% |
| Black or African American alone or in combination with one or more other races | 15,607 | 10.25% |
| American Indian and Alaska Native alone or in combination with one or more other races | 1,532 | 1.01% |
| Asian alone or in combination with one or more other races | 2,988 | 1.96% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 132 | 0.09% |
| Some Other Race alone or in combination with one or more other races | 7,833 | 5.14% |
Hispanic or Latino by Specific Origin in Rock Island County
*Base on 2010 Data
| Total | 147,546 | 100.00% |
| Hispanic or Latino (of any race) | 17,118 | 11.60% |
| Mexican | 15,598 | 10.57% |
| Puerto Rican | 301 | 0.20% |
| Cuban | 88 | 0.06% |
| Other Hispanic or Latino | 1,131 | 0.77% |
| Not Hispanic or Latino | 130,428 | 88.40% |
Hispanic or Latino and Race in Rock Island County
*Base on 2010 Data
| Total | 147,546 | 100.00% |
| Hispanic or Latino | 17,118 | 11.60% |
| White alone | 8,618 | 5.84% |
| Black or African American alone | 378 | 0.26% |
| American Indian and Alaska Native alone | 112 | 0.08% |
| Asian alone | 36 | 0.02% |
| Native Hawaiian and Other Pacific Islander alone | 4 | 0.00% |
| Some Other Race alone | 6,420 | 4.35% |
| Two or More Races | 1,550 | 1.05% |
| Not Hispanic or Latino | 130,428 | 88.40% |
| White alone | 111,764 | 75.75% |
| Black or African American alone | 12,911 | 8.75% |
| American Indian and Alaska Native alone | 283 | 0.19% |
| Asian alone | 2,383 | 1.62% |
| Native Hawaiian and Other Pacific Islander alone | 44 | 0.03% |
| Some Other Race alone | 135 | 0.09% |
| Two or More Races | 2,908 | 1.97% |
Relationship in Rock Island County
*Base on 2010 Data
| Total | 147,546 | 100.00% |
| In households | 143,233 | 97.08% |
| Householder | 61,303 | 41.55% |
| Spouse | 27,743 | 18.80% |
| Child | 39,258 | 26.61% |
| Own child under 18 years | 29,281 | 19.85% |
| Other relatives | 6,912 | 4.68% |
| Under 18 years | 3,158 | 2.14% |
| 65 years and over | 710 | 0.48% |
| Nonrelatives | 8,017 | 5.43% |
| Under 18 years | 667 | 0.45% |
| 65 years and over | 341 | 0.23% |
| Unmarried partner | 4,341 | 2.94% |
| In group quarters | 4,313 | 2.92% |
| Institutionalized population | 2,496 | 1.69% |
| Male | 1,709 | 1.16% |
| Female | 787 | 0.53% |
| Noninstitutionalized population | 1,817 | 1.23% |
| Male | 831 | 0.56% |
| Female | 986 | 0.67% |
Households by Type in Rock Island County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 61,303 | 100.00% |
| Family households (families) | 38,384 | 62.61% |
| With own children under 18 years | 15,906 | 25.95% |
| Husband-wife family | 27,743 | 45.26% |
| With own children under 18 years | 9,596 | 15.65% |
| Male householder, no wife present | 2,850 | 4.65% |
| With own children under 18 years | 1,504 | 2.45% |
| Female householder, no husband present | 7,791 | 12.71% |
| With own children under 18 years | 4,806 | 7.84% |
| Nonfamily households | 22,919 | 37.39% |
| Householder living alone | 19,392 | 31.63% |
| Male | 8,678 | 14.16% |
| 65 years and over | 2,137 | 3.49% |
| Female | 10,714 | 17.48% |
| 65 years and over | 5,613 | 9.16% |
Households with individuals under 18 years in Rock Island County
*Base on 2010 Data
| Total | 17,767 | 28.98% |
Households with individuals under 65 years in Rock Island County
*Base on 2010 Data
| Total | 17,260 | 28.16% |
Average Household Size in Rock Island County
*Base on 2010 Data
| Average household size | 2 | % |
Average Family Size in Rock Island County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Rock Island County
*Base on 2010 Data
| Total | 65,756 | 100.00% |
| Occupied housing units | 61,303 | 93.23% |
| Vacant housing units | 4,453 | 6.77% |
| For rent | 1,595 | 2.43% |
| Rented, not occupied | 54 | 0.08% |
| For sale only | 735 | 1.12% |
| Sold, not occupied | 208 | 0.32% |
| For seasonal, recreational, or occasional use | 324 | 0.49% |
| All other vacants | 1,537 | 2.34% |
Homeowner Vacancy Rate in Rock Island County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 1.70% |
Rental Vacancy Rate in Rock Island County
*Base on 2010 Data
| Rental vacancy rate (percent) | 7.80% |
Housing Tenure(Occupied housing units) in Rock Island County
*Base on 2010 Data
| Total | 61,303 | 100.00% |
| Owner-occupied housing units | 42,418 | 69.19% |
| Renter-occupied housing units | 18,885 | 30.81% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Rock Island County
*Base on 2010 Data
| Owner-occupied housing units | 102,858 | 71.81% |
| Renter-occupied housing units | 40,375 | 28.19% |
Average Household Size of Occupied Housing Units by Tenure in Rock Island County
*Base on 2010 Data
| Owner occupied | 2 | % |
| Renter occupied | 2 | % |