- Keitzer Field (Mediapolis, Iowa)
- Sharar Field (Mediapolis, Iowa)
- Whites (Melbourne, Iowa)
- Jukam's Landing (Menlo, Iowa)
- Army Reserve (Middleton, Iowa)
- Fuller (Milford, Iowa)
- Moore Private (Millerton, Iowa)
- Missouri Valley (Missouri Valley, Iowa)
- Robinson (Missouri Valley, Iowa)
- Olsen (Missouri Valley, Iowa)
- Monona Muni (Monona, Iowa)
- East Field (Montezuma, Iowa)
- Sig Field (Montezuma, Iowa)
- Monticello Regional (Monticello, Iowa)
- Nesler Field (Moorland, Iowa)
- Judge Lewis Fld Mt Ayr Muni (Mount Ayr, Iowa)
- Medical (Mount Pleasant, Iowa)
- Mount Pleasant Muni (Mount Pleasant, Iowa)
- Muscatine General (Muscatine, Iowa)
- Muscatine Muni (Muscatine, Iowa)
- Sch (Nevada, Iowa)
- New Hampton Muni (New Hampton, Iowa)
- Mitchell Field (New Hampton, Iowa)
- Orr-port (New London, Iowa)
- Newton Muni (Newton, Iowa)
- Skiff Medical Center (Newton, Iowa)
- Spotts Field (Nora Springs, Iowa)
- White Pigeon (North English, Iowa)
- Northwood Muni (Northwood, Iowa)
- Ridge (Oakland, Iowa)
- Oelwein Muni (Oelwein, Iowa)
- Mercy Hospital (Oelwein, Iowa)
- Burgess Memorial Hospital (Onawa, Iowa)
- Onawa Muni (Onawa, Iowa)
- Orange City Hospital (Orange City, Iowa)
- Orange City Muni (Orange City, Iowa)
- Osage Muni (Osage, Iowa)
- Clarke County Hospital (Osceola, Iowa)
- Osceola Municipal (Osceola, Iowa)
- Mahaska County Hospital (Oskaloosa, Iowa)
- Edgren (Oskaloosa, Iowa)
- Pierson Field (Oskaloosa, Iowa)
- Oskaloosa Muni (Oskaloosa, Iowa)
- Ottumwa Hospital (Ottumwa, Iowa)
- Ottumwa Industrial (Ottumwa, Iowa)
- Green Castle (Oxford, Iowa)
- Middlekoop (Packwood, Iowa)
- Daec (Palo, Iowa)
- Paullina Muni (Paullina, Iowa)
- Pella Community Hospital (Pella, Iowa)