Amerikas Forenede Stater
- Rock Island, folketællingsudpeget sted i Broward County, Florida
- Rock Island, amtssædet for Rock Island County, Illinois
- Rock Island, en by i County Le Flore, Oklahoma
- Rock Island, en by i Warren County, Tennessee
- Rock Island, en by i Douglas County, Washington
Palau
- Rock Islands, en gruppe øer, der hører til Caroline Islands