Template:1978 AL West standings
| Team | W | L | Pct. | GB | Home | Road |
|---|---|---|---|---|---|---|
| Kansas City Royals | 92 | 70 | .568 | — | 56–25 | 36–45 |
| Texas Rangers | 87 | 75 | .537 | 5 | 52–30 | 35–45 |
| California Angels | 87 | 75 | .537 | 5 | 50–31 | 37–44 |
| Minnesota Twins | 73 | 89 | .451 | 19 | 38–43 | 35–46 |
| Chicago White Sox | 71 | 90 | .441 | 20½ | 38–42 | 33–48 |
| Oakland Athletics | 69 | 93 | .426 | 23 | 38–42 | 31–51 |
| Seattle Mariners | 56 | 104 | .350 | 35 | 32–49 | 24–55 |