Rock Island Arsenal, Illinois
| Rock Island Arsenal | |
| Unincorporated | |
| Country | United States |
|---|---|
| State | Illinois |
| County | Rock Island County |
| Coordinates | 41°31′5″N 90°32′13″W / 41.51806°N 90.53694°WCoordinates: 41°31′5″N 90°32′13″W / 41.51806°N 90.53694°W |
| Area | 2.6 sq mi (7 km2) |
| - land | 1.6 sq mi (4 km2) |
| - water | 1.0 sq mi (3 km2) |
| Population | 149 (2010) |
| Density | 57/sq mi (22/km2) |
| Timezone | CST (UTC-6) |
| - summer (DST) | CDT (UTC-5) |
   Location of Rock Island Arsenal within Illinois
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Rock Island Arsenal is a census-designated place (CDP) in Rock Island County, Illinois, United States. The population was 149 at the 2010 census. The island contains the Rock Island National Cemetery.
Rock Island Arsenal is located at 41°31′5″N 90°32′13″W / 41.51806°N 90.53694°W (41.518033, -90.536959).
According to the United States Census Bureau, the CDP has a total area of 2.6 square miles (6.7 km2), of which 1.6 square miles (4.1 km2) is land and 1.0 square mile (2.6 km2) (37.89%) is water.
As of the census of 2000, there were 145 people, 43 households, and 40 families residing in the CDP. The population density was 90.9 people per square mile (35.2/km²). There were 43 housing units at an average density of 27.0/sq mi (10.4/km²). The racial makeup of the CDP was 62.76% White, 28.28% African American, 1.38% Native American, 3.45% from other races, and 4.14% from two or more races. Hispanic or Latino of any race were 2.76% of the population.
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