Roscommon: 1987 general election
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| Seat | Party | Candidate | Share | Count 1 | Count 2 | Count 3 | Count 4 |
| 1 |  | 27.6% | 8958 | |||||||
| 2 | | 22.4% | 7263 | 8812 (1549) | ||||||
| 3 |  | 18.4% | 5948 | 7047 (1099) | 7438 (391) | 7894 (456) | ||||
| 19.0% | 6153 | 7163 (1010) | 7625 (462) | 7876 (251) | |||||
 | 12.6% | 4080 | ||||||||
| Electorate: 41515 | Valid: 32416 | Spoilt: 265 |