| ALASKA | CHP | CIRCLE HOT SPRINGS |
| ARIZONA | CHD | CHANDLER MUNI |
| FLORIDA | CHN | WAUCHULA MUNI |
| MINNESOTA | CHU | CALEDONIA HOUSTON CO |
| MISSOURI | CHT | CHILLICOTHE MUNI |
| MISSOURI | CHQ | CHARLESTON MISSISSIPPI CO |
| OKLAHOMA | CHK | CHICKASHA MUNI |
| SOUTH CAROLINA | CHS | CHARLESTON AFB-INTL |
| TENNESSEE | CHA | CHATTANOOGA LOVELL FLD |
| VIRGINIA | CHO | CHARLOTTESVILLE-ALBEMARLE |