| population | |
| Rockham | 32 |
| population | |
| Rockham Post Office |
 | Aberdeen Regional Airport | ~ 68.27 km |
| Huron Regional Airport | ~ 74.47 km |
| Pierre Regional Airport | ~ 129.43 km |
| Ashley Municipal Airport | ~ 131.16 km |
| Watertown Regional Airport | ~ 131.42 km |
| Britton Municipal Airport | ~ 131.85 km |
| Mitchell Municipal Airport | ~ 140.24 km |
| Mobridge Municipal Airport | ~ 143.18 km |
| Madison Municipal Airport | ~ 169.61 km |
