Opinion Poll by Intercampus for Correio da Manhã and Negócios, 14–18 December 2020
Voting Intentions | Seats | Coalitions | Technical Information
Voting Intentions

Confidence Intervals
| Party | Last Result | Poll Result | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Socialista | 36.4% | 38.0% | 35.5–40.6% | 34.8–41.3% | 34.2–41.9% | 33.0–43.2% |
| Partido Social Democrata | 27.8% | 23.5% | 21.4–25.9% | 20.8–26.5% | 20.3–27.1% | 19.4–28.2% |
| Chega | 1.3% | 7.6% | 6.4–9.2% | 6.1–9.6% | 5.8–10.0% | 5.2–10.8% |
| Bloco de Esquerda | 9.5% | 7.3% | 6.1–8.8% | 5.8–9.3% | 5.5–9.7% | 5.0–10.5% |
| Coligação Democrática Unitária | 6.3% | 5.5% | 4.5–6.9% | 4.2–7.2% | 3.9–7.6% | 3.5–8.3% |
| Iniciativa Liberal | 1.3% | 4.5% | 3.6–5.8% | 3.3–6.1% | 3.1–6.4% | 2.7–7.1% |
| Pessoas–Animais–Natureza | 3.3% | 3.5% | 2.7–4.6% | 2.5–5.0% | 2.3–5.3% | 2.0–5.9% |
| CDS–Partido Popular | 4.2% | 3.2% | 2.4–4.3% | 2.2–4.6% | 2.0–4.9% | 1.7–5.5% |
| LIVRE | 1.1% | 0.8% | 0.5–1.5% | 0.4–1.7% | 0.4–1.9% | 0.2–2.3% |
Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.
Seats


Confidence Intervals
| Party | Last Result | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Socialista | 108 | 112 | 105–121 | 103–123 | 102–125 | 98–130 |
| Partido Social Democrata | 79 | 66 | 58–73 | 57–75 | 55–77 | 53–81 |
| Chega | 1 | 14 | 11–18 | 10–20 | 9–21 | 8–24 |
| Bloco de Esquerda | 19 | 14 | 11–18 | 8–19 | 7–20 | 7–22 |
| Coligação Democrática Unitária | 12 | 10 | 6–14 | 6–14 | 5–15 | 5–18 |
| Iniciativa Liberal | 1 | 6 | 4–9 | 4–10 | 4–12 | 3–13 |
| Pessoas–Animais–Natureza | 4 | 4 | 2–6 | 2–8 | 2–9 | 1–10 |
| CDS–Partido Popular | 5 | 2 | 1–5 | 1–5 | 1–5 | 0–8 |
| LIVRE | 1 | 0 | 0–1 | 0–1 | 0–1 | 0–3 |
Partido Socialista
For a full overview of the results for this party, see the Partido Socialista page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 94 | 0% | 100% | |
| 95 | 0.1% | 99.9% | |
| 96 | 0.1% | 99.8% | |
| 97 | 0.1% | 99.8% | |
| 98 | 0.2% | 99.6% | |
| 99 | 0.2% | 99.4% | |
| 100 | 0.3% | 99.2% | |
| 101 | 0.9% | 98.9% | |
| 102 | 2% | 98% | |
| 103 | 1.4% | 96% | |
| 104 | 4% | 95% | |
| 105 | 3% | 91% | |
| 106 | 3% | 88% | |
| 107 | 5% | 85% | |
| 108 | 7% | 80% | Last Result |
| 109 | 6% | 73% | |
| 110 | 5% | 67% | |
| 111 | 7% | 62% | |
| 112 | 7% | 55% | Median |
| 113 | 3% | 48% | |
| 114 | 4% | 44% | |
| 115 | 7% | 40% | |
| 116 | 3% | 33% | Majority |
| 117 | 5% | 29% | |
| 118 | 9% | 24% | |
| 119 | 2% | 15% | |
| 120 | 2% | 12% | |
| 121 | 3% | 10% | |
| 122 | 2% | 7% | |
| 123 | 0.8% | 5% | |
| 124 | 1.2% | 4% | |
| 125 | 0.8% | 3% | |
| 126 | 0.6% | 2% | |
| 127 | 0.4% | 2% | |
| 128 | 0.2% | 2% | |
| 129 | 0.8% | 1.4% | |
| 130 | 0.2% | 0.5% | |
| 131 | 0.2% | 0.3% | |
| 132 | 0% | 0.1% | |
| 133 | 0% | 0.1% | |
| 134 | 0% | 0% |
Partido Social Democrata
For a full overview of the results for this party, see the Partido Social Democrata page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 50 | 0.1% | 100% | |
| 51 | 0.1% | 99.9% | |
| 52 | 0.3% | 99.9% | |
| 53 | 0.4% | 99.5% | |
| 54 | 1.4% | 99.1% | |
| 55 | 0.7% | 98% | |
| 56 | 2% | 97% | |
| 57 | 3% | 95% | |
| 58 | 2% | 92% | |
| 59 | 4% | 90% | |
| 60 | 1.2% | 85% | |
| 61 | 2% | 84% | |
| 62 | 4% | 82% | |
| 63 | 10% | 78% | |
| 64 | 2% | 68% | |
| 65 | 4% | 65% | |
| 66 | 14% | 61% | Median |
| 67 | 11% | 47% | |
| 68 | 4% | 36% | |
| 69 | 8% | 32% | |
| 70 | 4% | 25% | |
| 71 | 7% | 21% | |
| 72 | 2% | 13% | |
| 73 | 4% | 11% | |
| 74 | 0.6% | 7% | |
| 75 | 3% | 7% | |
| 76 | 1.3% | 4% | |
| 77 | 0.9% | 3% | |
| 78 | 0.5% | 2% | |
| 79 | 0.5% | 1.4% | Last Result |
| 80 | 0.4% | 0.9% | |
| 81 | 0.1% | 0.5% | |
| 82 | 0.2% | 0.4% | |
| 83 | 0% | 0.2% | |
| 84 | 0% | 0.1% | |
| 85 | 0% | 0.1% | |
| 86 | 0% | 0.1% | |
| 87 | 0% | 0% |
Chega
For a full overview of the results for this party, see the Chega page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 1 | 0% | 100% | Last Result |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0.1% | 100% | |
| 7 | 0.1% | 99.8% | |
| 8 | 2% | 99.7% | |
| 9 | 3% | 98% | |
| 10 | 5% | 95% | |
| 11 | 19% | 90% | |
| 12 | 5% | 71% | |
| 13 | 12% | 66% | |
| 14 | 24% | 54% | Median |
| 15 | 9% | 30% | |
| 16 | 4% | 22% | |
| 17 | 4% | 18% | |
| 18 | 5% | 14% | |
| 19 | 3% | 9% | |
| 20 | 3% | 6% | |
| 21 | 2% | 4% | |
| 22 | 0.3% | 1.5% | |
| 23 | 0.6% | 1.2% | |
| 24 | 0.3% | 0.6% | |
| 25 | 0.2% | 0.3% | |
| 26 | 0% | 0.1% | |
| 27 | 0% | 0% |
Bloco de Esquerda
For a full overview of the results for this party, see the Bloco de Esquerda page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 7 | 4% | 100% | |
| 8 | 1.3% | 96% | |
| 9 | 0.9% | 95% | |
| 10 | 1.5% | 94% | |
| 11 | 13% | 93% | |
| 12 | 12% | 80% | |
| 13 | 12% | 68% | |
| 14 | 18% | 56% | Median |
| 15 | 5% | 38% | |
| 16 | 12% | 33% | |
| 17 | 6% | 21% | |
| 18 | 11% | 16% | |
| 19 | 3% | 5% | Last Result |
| 20 | 1.0% | 3% | |
| 21 | 0.7% | 2% | |
| 22 | 0.5% | 0.8% | |
| 23 | 0.2% | 0.3% | |
| 24 | 0% | 0.1% | |
| 25 | 0% | 0.1% | |
| 26 | 0% | 0% |
Coligação Democrática Unitária
For a full overview of the results for this party, see the Coligação Democrática Unitária page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 3 | 0.1% | 100% | |
| 4 | 0.3% | 99.9% | |
| 5 | 4% | 99.5% | |
| 6 | 12% | 95% | |
| 7 | 12% | 84% | |
| 8 | 7% | 72% | |
| 9 | 10% | 65% | |
| 10 | 16% | 55% | Median |
| 11 | 11% | 39% | |
| 12 | 3% | 28% | Last Result |
| 13 | 9% | 25% | |
| 14 | 11% | 15% | |
| 15 | 3% | 5% | |
| 16 | 0.5% | 2% | |
| 17 | 0.6% | 1.1% | |
| 18 | 0.4% | 0.5% | |
| 19 | 0.1% | 0.1% | |
| 20 | 0% | 0% |
Iniciativa Liberal
For a full overview of the results for this party, see the Iniciativa Liberal page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 1 | 0% | 100% | Last Result |
| 2 | 0% | 100% | |
| 3 | 2% | 100% | |
| 4 | 10% | 98% | |
| 5 | 21% | 88% | |
| 6 | 37% | 67% | Median |
| 7 | 8% | 30% | |
| 8 | 4% | 23% | |
| 9 | 8% | 18% | |
| 10 | 6% | 10% | |
| 11 | 1.1% | 4% | |
| 12 | 2% | 3% | |
| 13 | 0.4% | 0.7% | |
| 14 | 0.3% | 0.3% | |
| 15 | 0% | 0% |
Pessoas–Animais–Natureza
For a full overview of the results for this party, see the Pessoas–Animais–Natureza page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 1 | 0.8% | 100% | |
| 2 | 25% | 99.1% | |
| 3 | 14% | 74% | |
| 4 | 34% | 60% | Last Result, Median |
| 5 | 11% | 27% | |
| 6 | 9% | 16% | |
| 7 | 2% | 7% | |
| 8 | 2% | 5% | |
| 9 | 2% | 3% | |
| 10 | 0.3% | 0.8% | |
| 11 | 0.4% | 0.4% | |
| 12 | 0% | 0% |
CDS–Partido Popular
For a full overview of the results for this party, see the CDS–Partido Popular page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 1.5% | 100% | |
| 1 | 13% | 98.5% | |
| 2 | 41% | 85% | Median |
| 3 | 17% | 45% | |
| 4 | 6% | 27% | |
| 5 | 20% | 21% | Last Result |
| 6 | 0.4% | 1.3% | |
| 7 | 0.3% | 0.8% | |
| 8 | 0.3% | 0.6% | |
| 9 | 0.3% | 0.3% | |
| 10 | 0% | 0% |
LIVRE
For a full overview of the results for this party, see the LIVRE page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 60% | 100% | Median |
| 1 | 38% | 40% | Last Result |
| 2 | 1.0% | 2% | |
| 3 | 0.5% | 0.5% | |
| 4 | 0% | 0% |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária | 139 | 137 | 99.9% | 129–145 | 126–147 | 125–149 | 121–152 |
| Partido Socialista – Bloco de Esquerda | 127 | 127 | 98% | 119–135 | 117–138 | 116–140 | 112–145 |
| Partido Socialista – Coligação Democrática Unitária | 120 | 122 | 85% | 114–130 | 113–133 | 111–135 | 107–138 |
| Partido Socialista | 108 | 112 | 33% | 105–121 | 103–123 | 102–125 | 98–130 |
| Partido Social Democrata – CDS–Partido Popular | 84 | 69 | 0% | 61–75 | 59–78 | 58–80 | 55–85 |
Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 115 | 0% | 100% | |
| 116 | 0% | 99.9% | Majority |
| 117 | 0% | 99.9% | |
| 118 | 0.1% | 99.9% | |
| 119 | 0.1% | 99.8% | |
| 120 | 0.1% | 99.7% | |
| 121 | 0.3% | 99.6% | |
| 122 | 0.4% | 99.3% | |
| 123 | 0.2% | 98.9% | |
| 124 | 0.8% | 98.7% | |
| 125 | 0.9% | 98% | |
| 126 | 3% | 97% | |
| 127 | 1.2% | 94% | |
| 128 | 2% | 93% | |
| 129 | 4% | 90% | |
| 130 | 3% | 87% | |
| 131 | 6% | 84% | |
| 132 | 4% | 78% | |
| 133 | 3% | 74% | |
| 134 | 9% | 71% | |
| 135 | 6% | 62% | |
| 136 | 6% | 56% | Median |
| 137 | 5% | 51% | |
| 138 | 7% | 46% | |
| 139 | 3% | 38% | Last Result |
| 140 | 10% | 35% | |
| 141 | 6% | 25% | |
| 142 | 3% | 19% | |
| 143 | 2% | 15% | |
| 144 | 3% | 13% | |
| 145 | 3% | 10% | |
| 146 | 2% | 8% | |
| 147 | 1.4% | 5% | |
| 148 | 1.2% | 4% | |
| 149 | 0.9% | 3% | |
| 150 | 0.6% | 2% | |
| 151 | 0.4% | 1.3% | |
| 152 | 0.5% | 0.8% | |
| 153 | 0.2% | 0.3% | |
| 154 | 0% | 0.1% | |
| 155 | 0% | 0.1% | |
| 156 | 0% | 0% |
Partido Socialista – Bloco de Esquerda

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 106 | 0% | 100% | |
| 107 | 0% | 99.9% | |
| 108 | 0% | 99.9% | |
| 109 | 0.1% | 99.9% | |
| 110 | 0.1% | 99.8% | |
| 111 | 0.1% | 99.7% | |
| 112 | 0.4% | 99.6% | |
| 113 | 0.3% | 99.2% | |
| 114 | 0.5% | 98.9% | |
| 115 | 0.9% | 98% | |
| 116 | 1.1% | 98% | Majority |
| 117 | 2% | 96% | |
| 118 | 1.1% | 94% | |
| 119 | 4% | 93% | |
| 120 | 5% | 89% | |
| 121 | 8% | 83% | |
| 122 | 3% | 76% | |
| 123 | 3% | 72% | |
| 124 | 6% | 69% | |
| 125 | 7% | 63% | |
| 126 | 5% | 56% | Median |
| 127 | 6% | 51% | Last Result |
| 128 | 8% | 45% | |
| 129 | 5% | 37% | |
| 130 | 9% | 32% | |
| 131 | 3% | 23% | |
| 132 | 3% | 20% | |
| 133 | 3% | 17% | |
| 134 | 3% | 14% | |
| 135 | 3% | 11% | |
| 136 | 2% | 8% | |
| 137 | 1.2% | 7% | |
| 138 | 0.8% | 5% | |
| 139 | 1.5% | 5% | |
| 140 | 1.0% | 3% | |
| 141 | 0.3% | 2% | |
| 142 | 0.6% | 2% | |
| 143 | 0.6% | 1.3% | |
| 144 | 0.2% | 0.7% | |
| 145 | 0.2% | 0.6% | |
| 146 | 0.3% | 0.4% | |
| 147 | 0% | 0.1% | |
| 148 | 0% | 0% |
Partido Socialista – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 102 | 0% | 100% | |
| 103 | 0% | 99.9% | |
| 104 | 0.1% | 99.9% | |
| 105 | 0.1% | 99.8% | |
| 106 | 0.1% | 99.8% | |
| 107 | 0.3% | 99.6% | |
| 108 | 0.3% | 99.3% | |
| 109 | 0.5% | 99.0% | |
| 110 | 0.7% | 98.5% | |
| 111 | 0.9% | 98% | |
| 112 | 2% | 97% | |
| 113 | 2% | 95% | |
| 114 | 3% | 93% | |
| 115 | 5% | 90% | |
| 116 | 3% | 85% | Majority |
| 117 | 3% | 82% | |
| 118 | 5% | 79% | |
| 119 | 5% | 74% | |
| 120 | 4% | 69% | Last Result |
| 121 | 8% | 65% | |
| 122 | 10% | 58% | Median |
| 123 | 6% | 48% | |
| 124 | 6% | 42% | |
| 125 | 3% | 36% | |
| 126 | 5% | 33% | |
| 127 | 3% | 28% | |
| 128 | 7% | 25% | |
| 129 | 5% | 18% | |
| 130 | 4% | 12% | |
| 131 | 2% | 9% | |
| 132 | 1.0% | 7% | |
| 133 | 2% | 6% | |
| 134 | 0.8% | 4% | |
| 135 | 1.3% | 3% | |
| 136 | 0.7% | 2% | |
| 137 | 0.5% | 1.2% | |
| 138 | 0.2% | 0.6% | |
| 139 | 0.2% | 0.4% | |
| 140 | 0.1% | 0.2% | |
| 141 | 0% | 0.1% | |
| 142 | 0% | 0% |
Partido Socialista

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 94 | 0% | 100% | |
| 95 | 0.1% | 99.9% | |
| 96 | 0.1% | 99.8% | |
| 97 | 0.1% | 99.8% | |
| 98 | 0.2% | 99.6% | |
| 99 | 0.2% | 99.4% | |
| 100 | 0.3% | 99.2% | |
| 101 | 0.9% | 98.9% | |
| 102 | 2% | 98% | |
| 103 | 1.4% | 96% | |
| 104 | 4% | 95% | |
| 105 | 3% | 91% | |
| 106 | 3% | 88% | |
| 107 | 5% | 85% | |
| 108 | 7% | 80% | Last Result |
| 109 | 6% | 73% | |
| 110 | 5% | 67% | |
| 111 | 7% | 62% | |
| 112 | 7% | 55% | Median |
| 113 | 3% | 48% | |
| 114 | 4% | 44% | |
| 115 | 7% | 40% | |
| 116 | 3% | 33% | Majority |
| 117 | 5% | 29% | |
| 118 | 9% | 24% | |
| 119 | 2% | 15% | |
| 120 | 2% | 12% | |
| 121 | 3% | 10% | |
| 122 | 2% | 7% | |
| 123 | 0.8% | 5% | |
| 124 | 1.2% | 4% | |
| 125 | 0.8% | 3% | |
| 126 | 0.6% | 2% | |
| 127 | 0.4% | 2% | |
| 128 | 0.2% | 2% | |
| 129 | 0.8% | 1.4% | |
| 130 | 0.2% | 0.5% | |
| 131 | 0.2% | 0.3% | |
| 132 | 0% | 0.1% | |
| 133 | 0% | 0.1% | |
| 134 | 0% | 0% |
Partido Social Democrata – CDS–Partido Popular

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 53 | 0.1% | 100% | |
| 54 | 0.3% | 99.9% | |
| 55 | 0.3% | 99.6% | |
| 56 | 0.9% | 99.3% | |
| 57 | 0.8% | 98% | |
| 58 | 0.9% | 98% | |
| 59 | 2% | 97% | |
| 60 | 3% | 95% | |
| 61 | 2% | 92% | |
| 62 | 2% | 90% | |
| 63 | 3% | 87% | |
| 64 | 5% | 85% | |
| 65 | 8% | 79% | |
| 66 | 3% | 71% | |
| 67 | 6% | 68% | |
| 68 | 9% | 63% | Median |
| 69 | 9% | 53% | |
| 70 | 7% | 44% | |
| 71 | 4% | 37% | |
| 72 | 7% | 33% | |
| 73 | 5% | 26% | |
| 74 | 6% | 21% | |
| 75 | 5% | 14% | |
| 76 | 1.3% | 10% | |
| 77 | 3% | 8% | |
| 78 | 2% | 6% | |
| 79 | 1.2% | 4% | |
| 80 | 0.5% | 3% | |
| 81 | 1.0% | 2% | |
| 82 | 0.1% | 1.0% | |
| 83 | 0.2% | 0.9% | |
| 84 | 0.2% | 0.7% | Last Result |
| 85 | 0.3% | 0.5% | |
| 86 | 0.1% | 0.2% | |
| 87 | 0.1% | 0.1% | |
| 88 | 0% | 0.1% | |
| 89 | 0% | 0.1% | |
| 90 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: Intercampus
- Commissioner(s): Correio da Manhã and Negócios
- Fieldwork period: 14–18 December 2020
Calculations
- Sample size: 603
- Simulations done: 1,048,576
- Error estimate: 2.06%