Rock Island, Colville Reservation
It is located some 50 miles to the south of the Colville Reservation. Rock Island is a city with a population of 788 according to the 2010 census. Native Americans including Hispanics, make up 52% of the city's population. Whites make up 46% of the population of Rock Island. The city has a total of 277 housing units which gives Rock Island an average household size of 2.8 persons per housing unit. It covers 0.6 sq. mi. Elevation is 643 feet above sea level. Zip code is 98850. Below are several links to pictures of the Anishinabe city Rock Island, Colville Reservation.