State
County
Land Area
0.8 sq mi
Density
1,550.60/sq mi
2020 Growth Rate
6.18%
Growth Since 2010
61.42%
Rank in State
Rank in Country
Rock Island is a city located in Washington. With a 2020 population of 1,272, it is the 191st largest city in Washington and the 9330th largest city in the United States. Rock Island is currently growing at a rate of 6.18% annually and its population has increased by 61.42% since the most recent census, which recorded a population of 788 in 2010. Rock Island reached it's highest population of 1,272 in 2021. Spanning over 1 miles, Rock Island has a population density of 1,551 people per square mile.
The average household income in Rock Island is $49,875 with a poverty rate of 12.47%. The median rental costs in recent years comes to $618 per month, and the median house value is $156,500. The median age in Rock Island is 31.3 years, 30.7 years for males, and 33.4 years for females. For every 100 females there are 99.0 males.
According to the most recent ACS, the racial composition of Rock Island was:
| Race | Population | Percentage |
|---|---|---|
| White | 591 | 62.01% |
| Some Other Race | 339 | 35.57% |
| Two or More Races | 23 | 2.41% |
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 342 | 2.79 | 77.8 |
| Married | 137 | 3.76 | 86.9 |
| Non Family | 131 | 1.42 | 70.2 |
| Female | 47 | 3.77 | 80.9 |
| Male | 27 | 2.78 | 63 |
3.49
Average Family Size
2.79
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 116 | 20.86% |
| 9th to 12th Grade | 58 | 10.43% |
| High School Graduate | 231 | 41.55% |
| Some College | 100 | 17.99% |
| Associates Degree | 30 | 5.40% |
| Bachelors Degree | 12 | 2.16% |
| Graduate Degree | 9 | 1.62% |
| Name | Total | High School | Bachelors |
|---|---|---|---|
| White | 326 | 287 | 14 |
| Hispanic | 217 | 82 | 7 |
| Other Race | 179 | 70 | 7 |
| Multiple Races | 13 | 13 |
The highest rate of high school graduation is among multiple races people with a rate of 100.00%.
The highest rate of bachelors degrees is among white people with a rate of 4.29%.
53.19% of Rock Island residents speak only English, while 46.81% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 46.35% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 443 | 106 | 23.93% |
| Hispanic | 474 | 10 | 2.11% |
| Other | 339 | 2 | 0.59% |
12.47%
Overall Poverty Rate
12.03%
Male Poverty Rate
12.94%
Female Poverty Rate
The race most likely to be in poverty in Rock Island is White, with 23.93% below the poverty level.
The race least likely to be in poverty in Rock Island is Other, with 0.59% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.99%. Among those working part-time, it was 15.05%, and for those that did not work, the poverty rate was 10.61%.
40.1%
Overall Marriage Rate
42.3%
Male Marriage Rate
37.8%
Female Marriage Rate
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.
| Name | Veterans | % of Total |
|---|---|---|
| White | 42 | 10.12% |
4.76%
Veteran Poverty Rate
95.24%
Veteran Disability Rate
56.9%
Labor Force Participation
52.1%
Employment Rate
8.5%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
75.76%
Native Born
24.24%
Foreign Born
17.52%
Non Citizen
6.72%
Naturalized
75.76% of Rock Island residents were born in the United States, with 58.97% having been born in Washington. 17.52% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 1,272 | 74 | 6.18% |
| 2020 | 1,198 | 74 | 6.58% |
| 2019 | 1,124 | 74 | 7.05% |
| 2018 | 1,050 | 33 | 3.24% |
| 2017 | 1,017 | 58 | 6.05% |
| 2016 | 959 | 47 | 5.15% |
| 2015 | 912 | 18 | 2.01% |
| 2014 | 894 | 5 | 0.56% |
| 2013 | 889 | 5 | 0.57% |
| 2012 | 884 | 11 | 1.26% |
| 2011 | 873 | -2 | -0.23% |
| 2010 | 875 | 0.00% |