Opinion Poll by Pitagórica, 10–19 May 2019
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 | 32.3% | 40.5% | 38.0–43.1% | 37.3–43.8% | 36.7–44.5% | 35.5–45.7% | 
| Partido Social Democrata | 36.9% | 22.5% | 20.4–24.8% | 19.8–25.4% | 19.3–26.0% | 18.4–27.1% | 
| Bloco de Esquerda | 10.2% | 8.3% | 7.0–9.9% | 6.6–10.3% | 6.3–10.7% | 5.8–11.6% | 
| Coligação Democrática Unitária | 8.2% | 6.4% | 5.3–7.9% | 5.0–8.3% | 4.8–8.7% | 4.3–9.4% | 
| CDS–Partido Popular | 36.9% | 6.1% | 5.0–7.6% | 4.7–8.0% | 4.5–8.3% | 4.0–9.1% | 
| Pessoas–Animais–Natureza | 1.4% | 3.6% | 2.8–4.8% | 2.6–5.2% | 2.4–5.5% | 2.1–6.1% | 
| Aliança | 0.0% | 1.5% | 1.0–2.3% | 0.9–2.6% | 0.8–2.8% | 0.6–3.3% | 
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 | 86 | 121 | 113–130 | 111–132 | 109–134 | 105–137 | 
| Partido Social Democrata | 89 | 63 | 57–71 | 55–74 | 54–76 | 52–79 | 
| Bloco de Esquerda | 19 | 17 | 14–21 | 11–23 | 10–24 | 9–25 | 
| Coligação Democrática Unitária | 17 | 13 | 8–17 | 6–18 | 6–19 | 5–20 | 
| CDS–Partido Popular | 18 | 10 | 7–15 | 6–17 | 6–18 | 6–19 | 
| Pessoas–Animais–Natureza | 1 | 4 | 3–6 | 3–7 | 2–8 | 2–10 | 
| Aliança | 0 | 0 | 0–2 | 0–2 | 0–2 | 0–2 | 
Partido Socialista
For a full overview of the results for this party, see the Partido Socialista page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 86 | 0% | 100% | Last Result | 
| 87 | 0% | 100% | |
| 88 | 0% | 100% | |
| 89 | 0% | 100% | |
| 90 | 0% | 100% | |
| 91 | 0% | 100% | |
| 92 | 0% | 100% | |
| 93 | 0% | 100% | |
| 94 | 0% | 100% | |
| 95 | 0% | 100% | |
| 96 | 0% | 100% | |
| 97 | 0% | 100% | |
| 98 | 0% | 100% | |
| 99 | 0% | 100% | |
| 100 | 0% | 100% | |
| 101 | 0% | 100% | |
| 102 | 0% | 100% | |
| 103 | 0.1% | 99.9% | |
| 104 | 0.1% | 99.8% | |
| 105 | 0.2% | 99.7% | |
| 106 | 0.3% | 99.5% | |
| 107 | 0.5% | 99.2% | |
| 108 | 0.5% | 98.6% | |
| 109 | 0.8% | 98% | |
| 110 | 1.0% | 97% | |
| 111 | 2% | 96% | |
| 112 | 3% | 95% | |
| 113 | 3% | 92% | |
| 114 | 5% | 89% | |
| 115 | 5% | 84% | |
| 116 | 5% | 79% | Majority | 
| 117 | 5% | 74% | |
| 118 | 7% | 69% | |
| 119 | 5% | 62% | |
| 120 | 5% | 57% | |
| 121 | 4% | 52% | Median | 
| 122 | 5% | 47% | |
| 123 | 7% | 42% | |
| 124 | 5% | 35% | |
| 125 | 4% | 31% | |
| 126 | 5% | 26% | |
| 127 | 5% | 22% | |
| 128 | 3% | 17% | |
| 129 | 3% | 14% | |
| 130 | 3% | 11% | |
| 131 | 2% | 7% | |
| 132 | 1.5% | 5% | |
| 133 | 1.2% | 4% | |
| 134 | 0.9% | 3% | |
| 135 | 0.6% | 2% | |
| 136 | 0.4% | 1.1% | |
| 137 | 0.2% | 0.7% | |
| 138 | 0.2% | 0.4% | |
| 139 | 0.1% | 0.3% | |
| 140 | 0.1% | 0.2% | |
| 141 | 0% | 0.1% | |
| 142 | 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 | 
|---|---|---|---|
| 49 | 0% | 100% | |
| 50 | 0.1% | 99.9% | |
| 51 | 0.2% | 99.8% | |
| 52 | 0.6% | 99.6% | |
| 53 | 1.2% | 99.0% | |
| 54 | 3% | 98% | |
| 55 | 2% | 95% | |
| 56 | 3% | 93% | |
| 57 | 4% | 90% | |
| 58 | 5% | 86% | |
| 59 | 7% | 81% | |
| 60 | 8% | 74% | |
| 61 | 6% | 66% | |
| 62 | 4% | 60% | |
| 63 | 7% | 55% | Median | 
| 64 | 6% | 48% | |
| 65 | 4% | 42% | |
| 66 | 4% | 38% | |
| 67 | 7% | 34% | |
| 68 | 4% | 27% | |
| 69 | 4% | 23% | |
| 70 | 6% | 20% | |
| 71 | 4% | 14% | |
| 72 | 2% | 10% | |
| 73 | 2% | 8% | |
| 74 | 2% | 6% | |
| 75 | 1.0% | 4% | |
| 76 | 1.0% | 3% | |
| 77 | 0.7% | 2% | |
| 78 | 0.4% | 0.9% | |
| 79 | 0.2% | 0.5% | |
| 80 | 0.2% | 0.3% | |
| 81 | 0% | 0.1% | |
| 82 | 0.1% | 0.1% | |
| 83 | 0% | 0% | |
| 84 | 0% | 0% | |
| 85 | 0% | 0% | |
| 86 | 0% | 0% | |
| 87 | 0% | 0% | |
| 88 | 0% | 0% | |
| 89 | 0% | 0% | Last Result | 
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 | 
|---|---|---|---|
| 8 | 0% | 100% | |
| 9 | 0.7% | 99.9% | |
| 10 | 3% | 99.2% | |
| 11 | 2% | 96% | |
| 12 | 2% | 94% | |
| 13 | 2% | 93% | |
| 14 | 5% | 91% | |
| 15 | 8% | 85% | |
| 16 | 11% | 77% | |
| 17 | 20% | 66% | Median | 
| 18 | 19% | 46% | |
| 19 | 8% | 27% | Last Result | 
| 20 | 8% | 19% | |
| 21 | 3% | 11% | |
| 22 | 2% | 8% | |
| 23 | 3% | 6% | |
| 24 | 3% | 4% | |
| 25 | 0.8% | 1.2% | |
| 26 | 0.1% | 0.4% | |
| 27 | 0.1% | 0.3% | |
| 28 | 0.2% | 0.2% | |
| 29 | 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 | 
|---|---|---|---|
| 5 | 1.4% | 100% | |
| 6 | 5% | 98.6% | |
| 7 | 3% | 94% | |
| 8 | 7% | 90% | |
| 9 | 9% | 83% | |
| 10 | 7% | 74% | |
| 11 | 4% | 68% | |
| 12 | 6% | 64% | |
| 13 | 14% | 58% | Median | 
| 14 | 27% | 44% | |
| 15 | 3% | 17% | |
| 16 | 3% | 14% | |
| 17 | 6% | 11% | Last Result | 
| 18 | 2% | 5% | |
| 19 | 2% | 3% | |
| 20 | 0.8% | 0.9% | |
| 21 | 0.1% | 0.2% | |
| 22 | 0% | 0.1% | |
| 23 | 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 | 
|---|---|---|---|
| 4 | 0.3% | 100% | |
| 5 | 0.2% | 99.7% | |
| 6 | 6% | 99.5% | |
| 7 | 11% | 94% | |
| 8 | 20% | 83% | |
| 9 | 7% | 63% | |
| 10 | 11% | 56% | Median | 
| 11 | 14% | 46% | |
| 12 | 10% | 32% | |
| 13 | 7% | 22% | |
| 14 | 4% | 15% | |
| 15 | 4% | 11% | |
| 16 | 1.4% | 7% | |
| 17 | 2% | 5% | |
| 18 | 2% | 3% | Last Result | 
| 19 | 2% | 2% | |
| 20 | 0.1% | 0.3% | |
| 21 | 0% | 0.1% | |
| 22 | 0% | 0.1% | |
| 23 | 0% | 0.1% | |
| 24 | 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 | 0.1% | 100% | Last Result | 
| 2 | 4% | 99.9% | |
| 3 | 17% | 96% | |
| 4 | 29% | 79% | Median | 
| 5 | 7% | 50% | |
| 6 | 36% | 43% | |
| 7 | 4% | 8% | |
| 8 | 2% | 4% | |
| 9 | 0.9% | 2% | |
| 10 | 0.3% | 0.6% | |
| 11 | 0.2% | 0.3% | |
| 12 | 0.1% | 0.2% | |
| 13 | 0.1% | 0.1% | |
| 14 | 0% | 0% | 
Aliança
For a full overview of the results for this party, see the Aliança page.

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 0 | 78% | 100% | Last Result, Median | 
| 1 | 3% | 22% | |
| 2 | 18% | 19% | |
| 3 | 0.2% | 0.4% | |
| 4 | 0.2% | 0.2% | |
| 5 | 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 | 122 | 151 | 100% | 142–158 | 140–160 | 138–162 | 135–164 | 
| Partido Socialista – Bloco de Esquerda | 105 | 138 | 100% | 130–147 | 128–149 | 126–151 | 122–154 | 
| Partido Socialista – Coligação Democrática Unitária | 103 | 134 | 99.8% | 125–141 | 123–143 | 121–145 | 118–148 | 
| Partido Socialista | 86 | 121 | 79% | 113–130 | 111–132 | 109–134 | 105–137 | 
| Partido Social Democrata – CDS–Partido Popular | 107 | 74 | 0% | 67–82 | 65–85 | 63–86 | 61–89 | 
Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 122 | 0% | 100% | Last Result | 
| 123 | 0% | 100% | |
| 124 | 0% | 100% | |
| 125 | 0% | 100% | |
| 126 | 0% | 100% | |
| 127 | 0% | 100% | |
| 128 | 0% | 100% | |
| 129 | 0% | 100% | |
| 130 | 0% | 100% | |
| 131 | 0% | 99.9% | |
| 132 | 0.1% | 99.9% | |
| 133 | 0.1% | 99.9% | |
| 134 | 0.2% | 99.7% | |
| 135 | 0.2% | 99.6% | |
| 136 | 0.3% | 99.3% | |
| 137 | 0.7% | 99.0% | |
| 138 | 1.0% | 98% | |
| 139 | 2% | 97% | |
| 140 | 1.3% | 96% | |
| 141 | 3% | 94% | |
| 142 | 2% | 92% | |
| 143 | 3% | 90% | |
| 144 | 5% | 87% | |
| 145 | 5% | 82% | |
| 146 | 5% | 77% | |
| 147 | 4% | 72% | |
| 148 | 5% | 68% | |
| 149 | 8% | 63% | |
| 150 | 4% | 56% | |
| 151 | 4% | 51% | Median | 
| 152 | 5% | 47% | |
| 153 | 6% | 42% | |
| 154 | 5% | 35% | |
| 155 | 6% | 31% | |
| 156 | 5% | 24% | |
| 157 | 5% | 19% | |
| 158 | 4% | 14% | |
| 159 | 4% | 10% | |
| 160 | 2% | 6% | |
| 161 | 2% | 4% | |
| 162 | 0.9% | 3% | |
| 163 | 0.8% | 2% | |
| 164 | 0.4% | 0.8% | |
| 165 | 0.2% | 0.4% | |
| 166 | 0.1% | 0.2% | |
| 167 | 0% | 0.1% | |
| 168 | 0% | 0% | 
Partido Socialista – Bloco de Esquerda

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 105 | 0% | 100% | Last Result | 
| 106 | 0% | 100% | |
| 107 | 0% | 100% | |
| 108 | 0% | 100% | |
| 109 | 0% | 100% | |
| 110 | 0% | 100% | |
| 111 | 0% | 100% | |
| 112 | 0% | 100% | |
| 113 | 0% | 100% | |
| 114 | 0% | 100% | |
| 115 | 0% | 100% | |
| 116 | 0% | 100% | Majority | 
| 117 | 0% | 100% | |
| 118 | 0% | 100% | |
| 119 | 0% | 99.9% | |
| 120 | 0.1% | 99.9% | |
| 121 | 0.2% | 99.8% | |
| 122 | 0.2% | 99.6% | |
| 123 | 0.3% | 99.5% | |
| 124 | 0.4% | 99.2% | |
| 125 | 0.6% | 98.8% | |
| 126 | 0.7% | 98% | |
| 127 | 2% | 97% | |
| 128 | 2% | 96% | |
| 129 | 2% | 94% | |
| 130 | 5% | 92% | |
| 131 | 4% | 87% | |
| 132 | 3% | 83% | |
| 133 | 3% | 80% | |
| 134 | 7% | 78% | |
| 135 | 6% | 70% | |
| 136 | 5% | 64% | |
| 137 | 5% | 59% | |
| 138 | 5% | 54% | Median | 
| 139 | 4% | 49% | |
| 140 | 6% | 45% | |
| 141 | 7% | 39% | |
| 142 | 6% | 32% | |
| 143 | 4% | 26% | |
| 144 | 4% | 22% | |
| 145 | 5% | 19% | |
| 146 | 3% | 14% | |
| 147 | 3% | 11% | |
| 148 | 3% | 9% | |
| 149 | 2% | 6% | |
| 150 | 0.9% | 4% | |
| 151 | 0.8% | 3% | |
| 152 | 1.1% | 2% | |
| 153 | 0.5% | 1.2% | |
| 154 | 0.3% | 0.7% | |
| 155 | 0.2% | 0.4% | |
| 156 | 0.1% | 0.2% | |
| 157 | 0.1% | 0.2% | |
| 158 | 0% | 0% | 
Partido Socialista – Coligação Democrática Unitária

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 103 | 0% | 100% | Last Result | 
| 104 | 0% | 100% | |
| 105 | 0% | 100% | |
| 106 | 0% | 100% | |
| 107 | 0% | 100% | |
| 108 | 0% | 100% | |
| 109 | 0% | 100% | |
| 110 | 0% | 100% | |
| 111 | 0% | 100% | |
| 112 | 0% | 100% | |
| 113 | 0% | 100% | |
| 114 | 0% | 99.9% | |
| 115 | 0.1% | 99.9% | |
| 116 | 0.1% | 99.8% | Majority | 
| 117 | 0.1% | 99.7% | |
| 118 | 0.3% | 99.6% | |
| 119 | 0.4% | 99.3% | |
| 120 | 0.9% | 98.8% | |
| 121 | 0.9% | 98% | |
| 122 | 1.4% | 97% | |
| 123 | 2% | 96% | |
| 124 | 2% | 94% | |
| 125 | 2% | 92% | |
| 126 | 4% | 89% | |
| 127 | 4% | 86% | |
| 128 | 5% | 81% | |
| 129 | 5% | 76% | |
| 130 | 6% | 71% | |
| 131 | 6% | 66% | |
| 132 | 5% | 60% | |
| 133 | 4% | 55% | |
| 134 | 6% | 51% | Median | 
| 135 | 3% | 45% | |
| 136 | 6% | 42% | |
| 137 | 6% | 36% | |
| 138 | 7% | 29% | |
| 139 | 6% | 22% | |
| 140 | 4% | 16% | |
| 141 | 4% | 12% | |
| 142 | 3% | 8% | |
| 143 | 2% | 5% | |
| 144 | 1.0% | 4% | |
| 145 | 0.8% | 3% | |
| 146 | 0.7% | 2% | |
| 147 | 0.5% | 1.1% | |
| 148 | 0.3% | 0.6% | |
| 149 | 0.2% | 0.3% | |
| 150 | 0% | 0.2% | |
| 151 | 0.1% | 0.1% | |
| 152 | 0% | 0.1% | |
| 153 | 0% | 0% | 
Partido Socialista

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 86 | 0% | 100% | Last Result | 
| 87 | 0% | 100% | |
| 88 | 0% | 100% | |
| 89 | 0% | 100% | |
| 90 | 0% | 100% | |
| 91 | 0% | 100% | |
| 92 | 0% | 100% | |
| 93 | 0% | 100% | |
| 94 | 0% | 100% | |
| 95 | 0% | 100% | |
| 96 | 0% | 100% | |
| 97 | 0% | 100% | |
| 98 | 0% | 100% | |
| 99 | 0% | 100% | |
| 100 | 0% | 100% | |
| 101 | 0% | 100% | |
| 102 | 0% | 100% | |
| 103 | 0.1% | 99.9% | |
| 104 | 0.1% | 99.8% | |
| 105 | 0.2% | 99.7% | |
| 106 | 0.3% | 99.5% | |
| 107 | 0.5% | 99.2% | |
| 108 | 0.5% | 98.6% | |
| 109 | 0.8% | 98% | |
| 110 | 1.0% | 97% | |
| 111 | 2% | 96% | |
| 112 | 3% | 95% | |
| 113 | 3% | 92% | |
| 114 | 5% | 89% | |
| 115 | 5% | 84% | |
| 116 | 5% | 79% | Majority | 
| 117 | 5% | 74% | |
| 118 | 7% | 69% | |
| 119 | 5% | 62% | |
| 120 | 5% | 57% | |
| 121 | 4% | 52% | Median | 
| 122 | 5% | 47% | |
| 123 | 7% | 42% | |
| 124 | 5% | 35% | |
| 125 | 4% | 31% | |
| 126 | 5% | 26% | |
| 127 | 5% | 22% | |
| 128 | 3% | 17% | |
| 129 | 3% | 14% | |
| 130 | 3% | 11% | |
| 131 | 2% | 7% | |
| 132 | 1.5% | 5% | |
| 133 | 1.2% | 4% | |
| 134 | 0.9% | 3% | |
| 135 | 0.6% | 2% | |
| 136 | 0.4% | 1.1% | |
| 137 | 0.2% | 0.7% | |
| 138 | 0.2% | 0.4% | |
| 139 | 0.1% | 0.3% | |
| 140 | 0.1% | 0.2% | |
| 141 | 0% | 0.1% | |
| 142 | 0% | 0% | 
Partido Social Democrata – CDS–Partido Popular

| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 58 | 0% | 100% | |
| 59 | 0.1% | 99.9% | |
| 60 | 0.2% | 99.8% | |
| 61 | 0.6% | 99.7% | |
| 62 | 0.8% | 99.1% | |
| 63 | 0.9% | 98% | |
| 64 | 1.4% | 97% | |
| 65 | 3% | 96% | |
| 66 | 2% | 93% | |
| 67 | 6% | 91% | |
| 68 | 6% | 85% | |
| 69 | 3% | 79% | |
| 70 | 6% | 76% | |
| 71 | 6% | 70% | |
| 72 | 7% | 64% | |
| 73 | 6% | 57% | Median | 
| 74 | 4% | 52% | |
| 75 | 8% | 48% | |
| 76 | 5% | 40% | |
| 77 | 5% | 36% | |
| 78 | 6% | 31% | |
| 79 | 5% | 25% | |
| 80 | 4% | 20% | |
| 81 | 3% | 17% | |
| 82 | 4% | 13% | |
| 83 | 2% | 9% | |
| 84 | 2% | 7% | |
| 85 | 2% | 5% | |
| 86 | 1.5% | 4% | |
| 87 | 0.8% | 2% | |
| 88 | 0.5% | 1.4% | |
| 89 | 0.5% | 1.0% | |
| 90 | 0.2% | 0.5% | |
| 91 | 0.1% | 0.3% | |
| 92 | 0.1% | 0.2% | |
| 93 | 0% | 0.1% | |
| 94 | 0% | 0.1% | |
| 95 | 0% | 0% | |
| 96 | 0% | 0% | |
| 97 | 0% | 0% | |
| 98 | 0% | 0% | |
| 99 | 0% | 0% | |
| 100 | 0% | 0% | |
| 101 | 0% | 0% | |
| 102 | 0% | 0% | |
| 103 | 0% | 0% | |
| 104 | 0% | 0% | |
| 105 | 0% | 0% | |
| 106 | 0% | 0% | |
| 107 | 0% | 0% | Last Result | 
Technical Information
Opinion Poll
- Polling firm: Pitagórica
 - Commissioner(s): —
 - Fieldwork period: 10–19 May 2019
 
Calculations
- Sample size: 605
 - Simulations done: 1,048,576
 - Error estimate: 0.87%