None of the households in Rock Island, WA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
86.1% of the residents in Rock Island, WA are U.S. citizens.
In 2024, the median property value in Rock Island, WA was $273,500, and the homeownership rate was 83.3%.
Most people in Rock Island, WA drove alone to work, and the average commute time was 24.3 minutes. The average car ownership in Rock Island, WA was 2 cars per household.