Offaly County Council: 1979 Local Election
| Party | Seats | Votes | Share | Candidates | Constituencies | |||||
| Fianna Fáil |  | 10 | (+1) | 10211 | 42.3% | (+2.4%) | 14 | 4 | ||
| Fine Gael |  | 9 | (+1) | 10414 | 43.1% | (+5.6%) | 16 | (-1) | 4 | |
| Independent |  | 1 | 2002 | 8.3% | (+2.1%) | 6 | (+2) | 2 | ||
| Labour Party |  | 1 | (-2) | 1454 | 6.0% | (-6.7%) | 4 | (-5) | 2 | (-2) |
| Sinn Féin (Workers' Party) |  | 0 | 74 | 0.3% | (+0.3%) | 1 | (+1) | 1 | (+1) | |