The 1974-75 I-Divisioona season was the first season of the I-Divisioona, the second level of Finnish ice hockey. Eight teams participated in the league, and Vaasan Sport won the championship.
| Club | GP | W | T | L | GF–GA | Pts | ||
|---|---|---|---|---|---|---|---|---|
| 1. | 28 | 23 | 0 | 5 | 188:94 | 46 | ||
| 2. | 28 | 20 | 2 | 6 | 179:100 | 42 | ||
| 3. | 28 | 14 | 2 | 12 | 135:132 | 30 | ||
| 4. | 28 | 11 | 3 | 14 | 117:117 | 25 | ||
| 5. | 28 | 12 | 1 | 15 | 130:158 | 25 | ||
| 6. | 28 | 9 | 5 | 14 | 113:134 | 23 | ||
| 7. | 28 | 10 | 3 | 15 | 92:141 | 23 | ||
| 8. | 28 | 3 | 4 | 21 | 116:194 | 10 |