Statistics of Irish League in season 1997–98.
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There were two divisions, one of 10 teams and one of 8 teams, and Cliftonville won the championship.
| Pos | Club | P | W | D | L | GF | GA | Pts |
| 1 | Cliftonville | 36 | 20 | 8 | 8 | 49 | 37 | 68 |
| 2 | Linfield | 36 | 17 | 13 | 6 | 50 | 19 | 64 |
| 3 | Portadown | 36 | 17 | 9 | 10 | 50 | 38 | 60 |
| 4 | Glentoran | 36 | 17 | 8 | 11 | 52 | 34 | 59 |
| 5 | Ballymena United | 36 | 14 | 9 | 13 | 55 | 55 | 51 |
| 6 | Crusaders | 36 | 13 | 12 | 11 | 51 | 51 | 51 |
| 7 | Coleraine | 36 | 11 | 10 | 15 | 41 | 48 | 43 |
| 8 | Glenavon | 36 | 9 | 12 | 15 | 47 | 56 | 39 |
| 9 | Omagh Town | 36 | 7 | 10 | 19 | 43 | 68 | 31 |
| 10 | Ards | 36 | 4 | 11 | 21 | 31 | 63 | 23 |
| Pos | Club | P | W | D | L | GF | GA | Pts |
| 1 | Newry Town | 28 | 20 | 5 | 3 | 61 | 18 | 65 |
| 2 | Bangor | 28 | 18 | 4 | 6 | 51 | 26 | 58 |
| 3 | Distillery | 28 | 15 | 6 | 7 | 48 | 34 | 51 |
| 4 | Dungannon Swifts | 28 | 14 | 6 | 8 | 63 | 49 | 48 |
| 5 | Ballyclare Comrades | 28 | 13 | 3 | 12 | 47 | 45 | 42 |
| 6 | Larne | 28 | 8 | 2 | 18 | 30 | 58 | 26 |
| 7 | Limavady United | 28 | 5 | 3 | 20 | 29 | 61 | 18 |
| 8 | Carrick Rangers | 28 | 3 | 3 | 22 | 21 | 59 | 12 |
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