Sligo Corporation: 1979 Local Election
| Party | Seats | Votes | Share | Candidates | Constituencies | |||||
| Fine Gael |  | 4 | (+1) | 1861 | 26.7% | (+4.0%) | 8 | (+2) | 3 | (+2) |
| Fianna Fáil |  | 3 | 2249 | 32.2% | (+11.8%) | 7 | (+1) | 3 | (+2) | |
| Independent |  | 2 | (-3) | 1032 | 14.8% | (-28.0%) | 6 | (-4) | 3 | (+2) |
| Labour Party |  | 2 | (+1) | 978 | 14.0% | (+2.9%) | 5 | (-2) | 3 | (+2) |
| Independent Socialist |  | 1 | (+1) | 675 | 9.7% | (+9.7%) | 3 | (+3) | 3 | (+3) |
| Sinn Féin |  | 0 | 140 | 2.0% | (-1.0%) | 1 | (-1) | 1 | ||
| Sinn Féin (Workers' Party) |  | 0 | 47 | 0.7% | (+0.7%) | 1 | (+1) | 1 | (+1) | |