| Age at Inauguration | President | President Number |
| 42 Years, 322 Days | |
| 43 Years, 236 Days | |
| 46 Years, 154 Days | |
| 46 Years, 311 Days | |
| 47 Years, 169 Days | |
| 47 Years, 351 Days | |
| 48 Years, 101 Days | |
| 49 Years, 105 Days | |
| 49 Years, 122 Days | |
| 50 Years, 183 Days | |
| 51 Years, 6 Days | |
| 51 Years, 29 Days | |
| 51 Years, 33 Days | |
| 51 Years, 170 Days | |
| 51 Years, 349 Days | |
| 52 Years, 20 Days | |
| 52 Years, 111 Days | |
| 54 Years, 34 Days | |
| 54 Years, 89 Days | |
| 54 Year, 151 Days | |
| 54 Years, 198 Days | |
| 54 Years, 206 Days | |
| | Age at Inauguration | President | President Number |
| 55 Years, 87 Days | |
| 55 Years, 122 Days | |
| 55 Years, 196 Days | |
| 56 Years, 11 Days | |
| 56 Years, 66 Days | |
| 56 Years, 107 Days | |
| 57 Years, 67 Days | |
| 57 Years, 236 Days | |
| 57 Years, 325 Days | |
| 57 Years, 353 Days | |
| 58 Years, 310 Days | |
| 60 Years, 339 Days | |
| 61 Years, 26 Days | |
| 61 Years, 125 Days | |
| 61 Years, 354 Days | |
| 62 Years, 98 Days | |
| 64 Years, 100 Days | |
| 64 Years, 222 Days | |
| 65 Years, 315 Days | |
| 68 Years, 23 Days | |
| 69 Years, 349 Days | |
|