| population | |
| Sigel | 360 |
| Sigel Fire Protection District |
| population | |
| Union School (historical) |
 | Coles County Memorial Airport | ~ 33.57 km |
| Vandalia Municipal Airport | ~ 61.93 km |
| Decatur Airport | ~ 71.81 km |
| Salem–Leckrone Airport | ~ 76.84 km |
| Greenville Airport | ~ 86.27 km |
| University of Illinois Willard Airport | ~ 91.03 km |
| Sullivan County Airport | ~ 94.04 km |
| Centralia Municipal Airport | ~ 94.67 km |
| Lawrenceville Vincennes International Airport | ~ 95.81 km |
