Sligo County Council: 1991 Local Election
| Party | Seats | Votes | Share | Candidates | Constituencies | |||||
| Fianna Fáil |  | 11 | 11858 | 44.4% | (-1.2%) | 21 | (-1) | 5 | ||
| Fine Gael |  | 11 | (+2) | 9151 | 34.3% | (-3.6%) | 14 | (-5) | 5 | |
| Independent |  | 2 | (-1) | 2642 | 9.9% | (+1.7%) | 6 | (+2) | 4 | (+1) |
| Independent Socialist |  | 1 | 1456 | 5.5% | (+1.2%) | 5 | (+2) | 3 | (+1) | |
| Labour Party |  | 0 | (-1) | 894 | 3.3% | (+0.5%) | 3 | 3 | (+1) | |
| Sinn Féin |  | 0 | 431 | 1.6% | (+0.5%) | 1 | 1 | |||
| Progressive Democrats |  | 0 | 257 | 1.0% | (+1.0%) | 1 | (+1) | 1 | (+1) | |