Rock Island, WA
Population 1,142 · Washington
About Rock Island, WA
Rock Island is a small community in Washington with a population of 1,142 residents. The median household income is $55,114 per year, which is near the national average. The median age in Rock Island is 36.4 years.
Housing in Rock Island has a median home value of $255,500 and median monthly rent of $1,094. Of the 414 total housing units, the majority are owner-occupied, with 342 owner-occupied and 65 renter-occupied units.
The unemployment rate in Rock Island is 1.7% and the poverty rate is 9.4%. 10.3% of residents hold a bachelor's degree or higher. The average commute time is 22.9 minutes.
How Rock Island Ranks in Washington
Cost of Living in Rock Island, WA
Compared to national averages, Rock Island has a median household income of $55,114 (27% below the national median of $75,149). Home values average $255,500, which is 4% above the national median. Monthly rent at $1,094 is 6% below the US average of $1,163. Within Washington, Rock Island's income is 39% below the state average of $90,795, and home values are 45% below the state median of $460,491.
Why Live in Rock Island, WA?
Rock Island offers rent that’s lower than the national average at $1,094/month, and a strong job market with an unemployment rate of just 1.7%, and a low poverty rate of 9.4%, better than the national average. Additionally, the city features short commute times averaging just 22.9 minutes.
Potential considerations include median household income ($55,114) that falls below the national average. However, Rock Island’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Rock Island has a population of 1,142 with a median age of 36.4 years. Compare Rock Island with other cities to see how it stacks up, or explore all cities in Washington.
Similar Cities Near Rock Island
Cities in Washington with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Morton | 1,142 | $48,684 | $274,700 | Compare |
| Ames Lake | 1,138 | $157,500 | $1,069,900 | Compare |
| George | 1,136 | $55,781 | $167,000 | Compare |
| Puget Island | 1,136 | $65,395 | $398,200 | Compare |
| Carlsborg | 1,135 | $39,239 | $262,500 | Compare |
| Entiat | 1,151 | $76,250 | $336,400 | Compare |
| North Bonneville | 1,151 | $81,809 | $378,900 | Compare |
| Palouse | 1,131 | $92,875 | $261,000 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Washington
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Rock Island
What is the population of Rock Island, WA?
The population of Rock Island, WA is 1,142 according to the latest Census data.
What is the median household income in Rock Island?
The median household income in Rock Island, WA is $55,114 per year.
What is the median home value in Rock Island?
The median home value in Rock Island, WA is $255,500.
What is the average rent in Rock Island?
The median monthly rent in Rock Island, WA is $1,094.
What is the unemployment rate in Rock Island?
The unemployment rate in Rock Island, WA is 1.7%.