Local elections were held in all the counties and county boroughs of Ireland on June 11, 2004, on the same day as the European elections.
| Authority | FF | FG | LP | PD | Green | SF | Other |
|---|---|---|---|---|---|---|---|
| Carlow | 8 | 7 | 4 | 1 | 1 | 0 | 0 |
| Cavan | 11 | 11 | 0 | 0 | 0 | 3 | 0 |
| Clare | 13 | 10 | 1 | 0 | 1 | 0 | 7 |
| Cork City | 11 | 8 | 6 | 1 | 1 | 2 | 2 |
| Cork County | 16 | 24 | 5 | 1 | 0 | 0 | 2 |
| Donegal | 14 | 8 | 0 | 0 | 0 | 4 | 3 |
| Dublin City | |||||||
| Dun Laoghaire-Rathdown | 7 | 9 | 6 | 1 | 4 | 0 | 1 |
| Fingal | 4 | 5 | 6 | 1 | 3 | 1 | 4 |
| Galway City | 2 | 3 | 4 | 1 | 3 | 1 | 1 |
| Galway County | 10 | 10 | 1 | 3 | 0 | 1 | 5 |
| Kerry | 11 | 8 | 2 | 2 | 0 | 0 | 4 |
| Kildare | 10 | 7 | 4 | 0 | 0 | 1 | 3 |
| Kilkenny | 8 | 11 | 5 | 0 | 0 | 1 | 1 |
| Laois | 11 | 9 | 1 | 1 | 1 | 0 | 2 |
| Leitrim | 10 | 8 | 0 | 0 | 0 | 2 | 2 |
| Limerick City | 2 | 5 | 4 | 0 | 0 | 0 | 0 |
| Limerick County | 12 | 12 | 1 | 0 | 3 | 0 | 0 |
| Longford | 9 | 10 | 0 | 0 | 0 | 0 | 2 |
| Louth | 9 | 7 | 1 | 5 | 0 | 0 | 4 |
| Mayo | 12 | 16 | 1 | 0 | 0 | 1 | 1 |
| Meath | |||||||
| Monaghan | 5 | 7 | 0 | 0 | 0 | 7 | 1 |
| Offaly | 8 | 6 | 0 | 2 | 0 | 0 | 5 |
| Roscommon | |||||||
| Sligo | 10 | 10 | 3 | 0 | 0 | 1 | 1 |
| South Dublin | 6 | 3 | 7 | 2 | 2 | 3 | 3 |
| Tipperary North | 10 | 5 | 2 | 0 | 0 | 4 | 4 |
| Tipperary South | 10 | 8 | 2 | 0 | 0 | 0 | 6 |
| Waterford City | 1 | 4 | 3 | 0 | 0 | 2 | 5 |
| Waterford County | 7 | 11 | 4 | 0 | 0 | 1 | 0 |
| Westmeath | 9 | 8 | 6 | 0 | 0 | 0 | 0 |
| Wexford | 6 | 7 | 1 | 0 | 0 | 3 | 4 |
| Wicklow | 6 | 7 | 6 | 0 | 0 | 1 | 4 |