| population | |
| Casco | 578 |
| Casco Volunteer Fire Department |
 | Door County Cherryland Airport | ~ 35.65 km |
| Austin Straubel International Airport | ~ 41.31 km |
| Manitowoc County Airport | ~ 47.92 km |
| Menominee–Marinette Twin County Airport | ~ 63.51 km |
| Appleton International Airport | ~ 78.74 km |
| Clintonville Municipal Airport | ~ 88.27 km |
| Sheboygan County Memorial Airport | ~ 89.35 km |
| Wittman Regional Airport | ~ 98.01 km |
| Fond du Lac County Airport | ~ 111.41 km |
