Rock River Township, Michigan
Rock River Township, Michigan  | |
|---|---|
Location within Alger County (red) and the administered village of Chatham (pink)  | |
| Coordinates: 46°21′05″N 86°57′56″W / 46.35139°N 86.96556°W | |
| Country | United States | 
| State | Michigan | 
| County | Alger | 
| Government | |
| • Supervisor | Teri Grout | 
| • Clerk | Dawn Leppanen | 
| Area | |
 • Total  | 81.0 sq mi (209.8 km2) | 
| • Land | 80.7 sq mi (209.1 km2) | 
| • Water | 0.3 sq mi (0.7 km2) | 
| Elevation | 988 ft (301 m) | 
| Population  (2020)  | |
 • Total  | 1,231 | 
| • Density | 15.0/sq mi (5.8/km2) | 
| Time zone | UTC-5 (Eastern (EST)) | 
| • Summer (DST) | UTC-4 (EDT) | 
| ZIP code(s) | |
| Area code | 906 | 
| FIPS code | 26-69160 | 
| GNIS feature ID | 1626993 | 
Rock River Township is a civil township of Alger County in the U.S. state of Michigan. The population was 1,231 at the 2020 census.