| PS | PPD | PCP | CDS | MDP | |
| Сумма | 37,87% | 26,39% | 12,46% | 7,61% | 4,14% |
| Авейру | 31,85% | 42,86% | 3,17% | 11,06% | 3,88% |
| Бежа | 35,55% | 5,25% | 38,97% | 2,18% | 5,45% |
| Брага | 27,42% | 37,70% | 3,71% | 18,01% | 2,91% |
| Браганcа | 24,66% | 43,00% | 2,72% | 13,46% | 3,65% |
| Каштелу-Бранку | 41,51% | 24,28% | 5,63% | 6,36% | 3,93% |
| Коимбра | 43,20% | 27,24% | 5,74% | 4,61% | 4,44% |
| Эвора | 37,89% | 6,86% | 37,07% | 2,82% | 7,84% |
| Фару | 45,42% | 13,93% | 12,31% | 3,36% | 9,49% |
| Гуарда | 28,20% | 33,34% | 2,93% | 19,48% | 3,58% |
| Леирия | 33,19% | 35,97% | 6,43% | 6,76% | 3,40% |
| Лиссабон | 45,98% | 14,97% | 18,91% | 4,78% | 4,12% |
| Порталегре | 52,42% | 9,85% | 17,52% | 3,95% | 4,53% |
| Порту | 42,55% | 29,41% | 6,66% | 8,92% | 2,58% |
| Сантарен | 42,93% | 18,79% | 15,09% | 4,32% | 4,09% |
| Сетубал | 38,15% | 5,73% | 37,79% | 1,55% | 6,03% |
| Виана-ду-Каштелу | 24,45% | 36,02% | 3,81% | 14,61% | 7,06% |
| Вила-Реал | 27,14% | 45,79% | 2,85% | 7,16% | 2,30% |
| Везеу | 21,47% | 43,78% | 2,29% | 17,19% | 4,04% |
| Азорские острова | 30,39% | 54,81% | 1,48% | 3,09% | 2,71% |
| Мадейра | 19,58% | 61,90% | 1,65% | 10,03% | 1,32% |
http://upload.wikimedia.org/wikipedia/en/1/15/Pt_plelection_1975.PNG
