| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| MD1 | airport | United States | 41.37 | -74.51 | 650 | 0 | |
| MDD (MIDLAND AIRPARK) | airport | United States | 32.04 | -102.10 | 2803 | 0 | |
| MDF (TAYLOR CO) | airport | United States | 45.10 | -90.30 | 1470 | 0 | |
| MDH (SOUTHERN ILLINOIS) | airport | United States | 37.78 | -89.25 | 411 | 0 | |
| MDJ (CITY CO) | airport | United States | 44.67 | -121.16 | 2437 | 0 | |
| MDN (MADISON MUNI) | airport | United States | 38.76 | -85.47 | 817 | 0 | |
| MDO (MIDDLETON ISLAND) | airport | United States | 59.45 | -146.31 | 100 | 0 | |
| MDR 1 | airport | United States | 33.47 | -101.99 | 3300 | 0 | |
| MDT (HARRISBURG INTL) | airport | United States | 40.19 | -76.76 | 310 | 0 | |
| MDW (CHICAGO MIDWAY INTL) | airport | United States | 41.79 | -87.75 | 620 | 0 | |
| MDY (MIDWAY ATOLL) | airport | United States | 28.20 | -177.38 | 13 | 0 |