Rock Island is a city located in Douglas County Washington. Rock Island has a 2024 population of 1,588. Rock Island is currently growing at a rate of 4.96% annually and its population has increased by 23.1% since the most recent census, which recorded a population of 1,290 in 2020.
The average household income in Rock Island is $61,725 with a poverty rate of 6%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Rock Island is 33.9 years, 32.8 years for males, and 35.7 years for females.
According to the most recent ACS, the racial composition of Rock Island was:
White
Other race
Two or more races
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 417 | 3.02 | 84.2 | 15.8 |
| Married | 232 | 3.78 | 88.4 | 11.6 |
| Non Family | 119 | 1.5 | 81.5 | 18.5 |
| Female | 56 | 3.05 | 69.6 | 30.4 |
| Male | 10 | 3.1 | 100 | 0 |
3.58
Average Family Size
3.02
Average Household Size
84.2%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among black people with a rate of 62.5%.
All
Male
Female
$34,091
Average Earnings
$38,583
Average Male
$30,489
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
50.59% of Rock Island residents speak only English, while 49.41% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 49.07% of the population.
rate
6%
Overall Poverty Rate
6.34%
Male Poverty Rate
5.73%
Female Poverty Rate
The race most likely to be in poverty in Rock Island is Black, with 75% below the poverty level.
The race least likely to be in poverty in Rock Island is Multiple, with 3.03% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.61%. Among those working part-time, it was 2.48%, and for those that did not work, the poverty rate was 10.26%.
Married
Widowed
Divorced
Separated
NeverMarried
46.8%
Overall Marriage Rate
48.2%
Male Marriage Rate
45.5%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
96.08%
Veteran Disability Rate
LaborForceParticipation
54.2%
Labor Force Participation
50.4%
Employment Rate
7%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
56.79%
Born in Rock Island
75.77%
Native Born
24.23%
Foreign Born
16.76%
Non Citizen
7.47%
Naturalized
75.77% of Rock Island residents were born in the United States, with 56.79% having been born in Washington. 16.76% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 1,960 | 74 | 3.92% |
| 2028 | 1,886 | 75 | 4.14% |
| 2027 | 1,811 | 74 | 4.26% |
| 2026 | 1,737 | 75 | 4.51% |
| 2025 | 1,662 | 74 | 4.66% |
| 2024 | 1,588 | 75 | 4.96% |
| 2023 | 1,513 | 74 | 5.14% |
| 2022 | 1,439 | 72 | 5.27% |
| 2021 | 1,367 | 77 | 5.97% |
| 2020 | 1,290 | 35 | 2.79% |
| 2019 | 1,255 | 77 | 6.54% |
| 2018 | 1,178 | 29 | 2.52% |
| 2017 | 1,149 | 59 | 5.41% |
| 2016 | 1,090 | 45 | 4.31% |
| 2015 | 1,045 | 19 | 1.85% |
| 2014 | 1,026 | 8 | 0.79% |
| 2013 | 1,018 | 5 | 0.49% |
| 2012 | 1,013 | 9 | 0.9% |
| 2011 | 1,004 | -3 | -0.3% |
| 2010 | 1,007 | 0 | 0% |