| население | |
| Armstrong | 287 |
| Armstrong Fire Protection District | |
| Armstrong Reservoir Dam | |
| Armstrong School (historical) | |
| Brooks Cemetery | |
| Gold Dust School (historical) | |
| Hackley Cemetery |
 | Omar N Bradley Airport | ~ 33.29 км |
| Marshall Memorial Municipal Airport | ~ 46.14 км |
| Columbia Regional Airport | ~ 64.94 км |
| Sedalia Memorial Airport | ~ 73.40 км |
| Jefferson City Memorial Airport | ~ 88.53 км |
| Whiteman Air Force Base | ~ 93.25 км |
| Roy Otten Memorial Airfield | ~ 93.62 км |
| Kirksville Regional Airport | ~ 93.77 км |
| Lee C Fine Memorial Airport | ~ 130.19 км |
