| Northern | ||||||||||||||
| Rk | Team | Affiliate | W | L | Pct | Gbl | RF | RA | Manager | Stadium | Attendance | Top Batter | Top Pitcher | Playoffs |
| 1 | Wausau Timbers ** | SEA | 84 | 48 | .636 | -- | 767 | 552 | Bill Plummer | Athletic Park | 58,116 | Harold Reynolds (3) | Edwin Nunez (1) | League Champions |
| 2 | Waterloo Indians | CLE | 81 | 55 | .596 | 5.0 | 695 | 600 | Gomer Hodge | Municipal Stadium | 80,355 | Edwin Saavedra (2) | Mike Jeffcoat (9) | Lost in Semi-Finals |
| 3 | Wisconsin Rapids Twins | MIN | 68 | 65 | .511 | 16.5 | 697 | 628 | Ken Staples | Witter Field | 43,509 | Jim Eisenreich (1) | Rich Yett (6) | |
| 4 | Appleton Foxes | CHW | 54 | 80 | .403 | 31.0 | 492 | 591 | Sam Ewing | Goodland Field | 66,780 | Raymundo Torres (12) | Kevin Flannery (20) | |
| Southern | ||||||||||||||
| Rk | Team | Affiliate | W | L | Pct | Gbl | RF | RA | Manager | Stadium | Attendance | Top Batter | Top Pitcher | Playoffs |
| 1 | Quad Cities Cubs | CHC | 77 | 58 | .570 | -- | 544 | 547 | Rich Morales | John O'Donnell Stadium | 134,142 | Henry Cotto (8) | Glenn Swaggerty (12) | Lost in Finals |
| 2 | Cedar Rapids Reds | CIN | 65 | 68 | .489 | 11.0 | 484 | 540 | Randy Davidson | Veterans Field | 89,824 | Emil Drzayich (25) | Scot Ender (2) | Lost in Semi-Finals |
| 3 | Burlington Bees | MIL | 54 | 81 | .400 | 23.0 | 557 | 715 | Terry Bevington | Community Field | 62,127 | Carlos Ponce (4) | Tim Crews (7) | |
| 4 | Clinton Giants | SF | 52 | 80 | .394 | 23.5 | 537 | 617 | Wendell Kim | Riverview Stadium | 67,940 | Sean Toerner (24) | David Wilhelmi (10) | |