| 2005 |
Airport Name | Identifier | Level |
| Cedar Rapids - Eastern Iowa Airport | CID | 1 | |
| Category I | Des Moines International Airport | DSM | 1 |
| Dubuque Regional Airport | DBQ | 1 | |
| Fort Dodge Regional Airport | FOD | 1 | |
| Mason City Municipal Airport | MCI | 1 | |
| Sioux Gateway Airport | SUX | 1 | |
| Southeast Iowa Regional Airport | BRL | 1 | |
| Waterloo Municipal Airport | ALO | 1 | |
| Algona Municipal Airport | AXA | 2 | |
| Ames Municipal Airport | AMW | 2 | |
| Ankeny Regional Airport | IKV | 2 | |
| Atlantic Municipal Airport | AIO | 2 | |
| Boone Municipal Airport | BNW | 2 | |
| Carroll Municipal - Arthur N. Neu Field | CIN | 2 | |
| Charles City Municipal Airport | CCY | 2 | |
| Cherokee Municipal Airport | CKP | 2 | |
| Clarinda Municipal - Schenck Field | ICL | 2 | |
| Clinton Municipal Airport | CWI | 2 | |
| Council Bluffs Municipal Airport | CBF | 2 | |
| Creston Municipal Airport | CSQ | 2 | |
| Davenport Municipal Airport | DVN | 2 | |
| Decorah Municipal Airport | DEH | 2 | |
| Denison Municipal Airport | DNS | 2 | |
| Estherville Municipal Airport | EST | 2 | |
| Category II | Fairfield Municipal Airport | FFL | 2 |
| Harlan Municipal Airport | HNR | 2 | |
| Independence Municipal Airport | IIB | 2 | |
| Iowa City Municipal Airport | IOW | 2 | |
| Keokuk Municipal Airport | EOK | 2 | |
| Knoxville Municipal Airport | OXV | 2 | |
| LeMars Municipal Airport | LRJ | 2 | |
| Marshalltown Municipal Airport | MIW | 2 | |
| Monticello Regional Airport | MXO | 2 | |
| Mount Pleasant Municipal Airport | MPZ | 2 | |
| Muscatine Municipal Airport | MUT | 2 | |
| Newton Municipal Airport | TNU | 2 | |
| Oskaloosa Municipal Airport | OOA | 2 | |
| Ottumwa Industrial Airport | OTM | 2 | |
| Pella Municipal Airport | PEA | 2 | |
| Perry Municipal Airport | PRO | 2 | |
| Red Oak Municipal Airport | RDK | 2 | |
| Sheldon Municipal Airport | SHL | 2 | |
| Spencer Municipal Airport | SPW | 2 | |
| Storm Lake Municipal Airport | SLB | 2 | |
| Vinton Veteran's Memorial Airpark | VTI | 2 | |
| Washington Municipal Airport | AWG | 2 | |
| Webster City Municipal Airport | EBS | 2 | |
| Akron Municipal Airport | Y40 | 3 | |
| Albia Municipal Airport | 4C8 | 3 | |
| Allison Municipal Airport | K98 | 3 | |
| Anita Municipal - Burke Field | Y43 | 3 | |
| Audubon County Airport | ADU | 3 | |
| Bedford Municipal Airport | Y46 | 3 | |
| Belle Plaine Municipal - Tippie Field | TZT | 3 | |
| Belmond Municipal Airport | Y48 | 3 | |
| Bloomfield Municipal Airport | 4K6 | 3 | |
| Centerville Municipal Airport | TVK | 3 | |
| Chariton Municipal Airport | CNC | 3 | |
| Clarion Municipal Airport | CAV | 3 | |
| Corning Municipal Airport | CRZ | 3 | |
| Cresco Municipal - Church Field | CJJ | 3 | |
| Eagle Grove Municipal Airport | EAG | 3 | |
| Eldora Municipal Airport | 6C0 | 3 | |
| Emmetsburg Municipal Airport | EGQ | 3 | |
| Forest City Municipal Airport | FXY | 3 | |
| Fort Madison Municipal Airport | FSW | 3 | |
| Greenfield Municipal Airport | GFZ | 3 | |
| Grinnell Municipal Airport | GGI | 3 | |
| Grundy Center Municipal Airport | 6K7 | 3 | |
| Guthrie County Regional Airport | GCT | 3 | |
| Hampton Municipal Airport | HPT | 3 | |
| Category III | Hartley Municipal Airport | 0Y4 | 3 |
| Hawarden Municipal Airport | 2Y2 | 3 | |
| Humboldt Municipal Airport | 0K7 | 3 | |
| Ida Grove Municipal Airport | IDG | 3 | |
| Iowa Falls Municipal Airport | IFA | 3 | |
| Jefferson Municipal Airport | EFW | 3 | |
| Keosauqua Municipal Airport | 6K9 | 3 | |
| Lake Mills Municipal Airport | 0Y6 | 3 | |
| Lamoni Municipal Airport | LWD | 3 | |
| Manchester Municipal Airport | C27 | 3 | |
| Mapleton Municipal Airport | MEY | 3 | |
| Maquoketa Municipal Airport | OQW | 3 | |
| Milford Municipal - Fuller Field | 4D8 | 3 | |
| Monona Municipal Airport | 7C3 | 3 | |
| Mount Ayr Municipal - Lewis Field | 1Y3 | 3 | |
| New Hampton Municipal Airport | 1Y5 | 3 | |
| Northwood Municipal Airport | 5D2 | 3 | |
| Oelwein Municipal Airport | OLZ | 3 | |
| Onawa Municipal Airport | K36 | 3 | |
| Orange City Municipal Airport | ORC | 3 | |
| Osage Municipal Airport | D02 | 3 | |
| Osceola Municipal Airport | I75 | 3 | |
| Paullina Municipal Airport | 1Y9 | 3 | |
| Pocahontas Municipal Airport | POH | 3 | |
| Primghar Municipal Airport | 2Y0 | 3 | |
| Rock Rapids Municipal Airport | RRQ | 3 | |
| Rockwell City Municipal Airport | 2Y4 | 3 | |
| Sac City Municipal Airport | SKI | 3 | |
| Shenandoah Municipal Airport | SDA | 3 | |
| Sibley Municipal Airport | ISB | 3 | |
| Sioux Center Municipal Airport | SOY | 3 | |
| Spirit Lake (Okoboji) Airport | 0F3 | 3 | |
| Sully Municipal Airport | 8C2 | 3 | |
| Tipton Municipal -Mathews Field | 8C4 | 3 | |
| Category III | Toledo Municipal Airport | 8C5 | 3 |
| Traer Municipal Airport | 8C6 | 3 | |
| Wall Lake Municipal Airport | 3Y0 | 3 | |
| Waukon Municipal Airport | Y01 | 3 | |
| Waverly Municipal Airport | C25 | 3 | |
| West Union Municipal - Scott Field | 3Y2 | 3 | |
| Winterset - Madison County Airport | 3Y3 | 3 | |
| Woodbine Municipal Airport | 3Y4 | 3 | |