| население | |
| City of Onawa | 2998 |
| Township of Ashton | |
| Township of Belvidere | |
| Township of Center | |
| Township of Cooper | |
| Township of Fairview | |
| Township of Franklin |
 | Denison Municipal Airport | ~ 48.40 км |
| Sioux Gateway Airport / Brigadier General Bud Day Field | ~ 51.85 км |
| Scribner State Airport | ~ 74.09 км |
| Fremont Municipal Airport | ~ 81.55 км |
| Le Mars Municipal Airport | ~ 83.01 км |
| Eppley Airfield | ~ 83.41 км |
| Storm Lake Municipal Airport | ~ 84.72 км |
| Council Bluffs Municipal Airport | ~ 89.66 км |
| Arthur N Neu Airport | ~ 96.68 км |
