| 1966A Season Leaders - Team - Offense - Final | ||||
| Offense | Most | Team(s) | Fewest | Team(s) |
| Total Points. | 424 | Kansas City | 152 | Miami |
| Total TDs. | 50 | Kansas City | 16 | Miami |
| PATs. | 48 | San Diego | 15 | Miami |
| 2 Pt Conversions. | 2 | Buffalo | 0 | San Diego, Houston |
| FG Attempts. | 37 | Buffalo | 19 | Oakland, Miami |
| FG Made. | 30 | Buffalo | 9 | Oakland, Boston |
| Safeties. | 0 | 4 or more teams | 0 | 4 or more teams |
| First Downs. | 291 | Kansas City | 174 | Miami |
| by Rushing. | 113 | Kansas City | 61 | Oakland |
| by Passing. | 177 | San Diego | 91 | Miami |
| by Penalty. | 19 | Kansas City | 7 | NY Jets |
| Total Yards. | 5,305 | Kansas City | 3,064 | Miami |
| Rushing Attempts. | 499 | Buffalo | 349 | Oakland |
| Yards Gained. | 2,116 | Buffalo | 1,175 | Oakland |
| Av Gain. | 4.4 | San Diego | 3.4 | Oakland |
| TDs. | 18 | Kansas City | 1 | Miami |
| Passing Attempts. | 494 | NY Jets | 418 | Boston |
| Completions. | 266 | NY Jets | 170 | Miami |
| Yards Gained. | 3,744 | NY Jets | 1,758 | Miami |
| Sacked. | 46 | Oakland | 9 | NY Jets |
| Completion %. | 60.3 | Kansas City | 39.0 | Miami |
| TDs. | 29 | San Diego | 11 | Miami |
| Interceptions. | 26 | Miami | 11 | Buffalo |
| Pass Rating. | 93.7 | Kansas City | 34.9 | Miami |
| 1966A Season Leaders - Team - Defense - Final | ||||
| Defense | Fewest | Team(s) | Most | Team(s) |
| Total Points. | 210 | Kansas City | 374 | Houston, Miami |
| Total TDs. | 23 | Kansas City | 43 | Houston, Miami |
| PATs. | 22 | Kansas City | 41 | Houston |
| 2 Pt Conversions. | 0 | 4 or more teams | 2 | San Diego, Denver, Miami |
| FG Attempts. | 18 | Boston | 35 | Oakland, Miami |
| FG Made. | 14 | Buffalo, NY Jets, Boston | 25 | Houston |
| Safeties. | 0 | 4 or more teams | 0 | 4 or more teams |
| First Downs. | 207 | Buffalo | 257 | Miami |
| by Rushing. | 58 | Buffalo | 112 | Oakland |
| by Passing. | 115 | Kansas City | 157 | Boston |
| by Penalty. | 5 | Houston | 19 | NY Jets |
| Total Yards. | 3,585 | Kansas City | 5,040 | Miami |
| Rushing Attempts. | 351 | Buffalo | 485 | Oakland |
| Yards Gained. | 1,093 | Boston | 2,019 | Denver |
| Av Gain. | 2.9 | Boston | 4.6 | Denver |
| TDs. | 5 | Buffalo, Kansas City | 17 | San Diego |
| Passing Attempts. | 396 | Denver | 493 | Buffalo |
| Completions. | 200 | San Diego | 253 | Boston |
| Yards Gained. | 2,138 | Kansas City | 3,485 | Miami |
| Sacked. | 41 | Denver | 13 | Miami |
| Completion %. | 44.1 | Kansas City | 53.4 | Oakland |
| TDs. | 14 | Kansas City | 27 | Houston |
| Interceptions. | 34 | Kansas City | 11 | Denver |
| Pass Rating. | 37.6 | Kansas City | 84.0 | Denver |