| population | |
| Dewey County Ambulance Service Isabel | |
| Isabel | 145 |
| population | |
| Isabel City Hall | |
| Isabel Municipal Airport |
 | Lemmon Municipal Airport | ~ 78.40 km |
| Mobridge Municipal Airport | ~ 81.67 km |
| Pierre Regional Airport | ~ 144.21 km |
| Philip Airport | ~ 150.16 km |
| Bismarck Municipal Airport | ~ 162.20 km |
| Bowman Regional Airport | ~ 168.38 km |
| Ashley Municipal Airport | ~ 176.03 km |
| Dickinson Theodore Roosevelt Regional Airport | ~ 188.43 km |
| Ellsworth Air Force Base | ~ 191.55 km |
