Opinion Poll by CESOP–UCP, 29 October–4 November 2021

Voting Intentions | Seats | Coalitions | Technical Information

Voting Intentions

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Confidence Intervals

Party Last Result Poll Result 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Partido Socialista 36.4% 39.0% 36.9–41.1% 36.3–41.7% 35.8–42.2% 34.8–43.3%
Partido Social Democrata 27.8% 30.0% 28.0–32.0% 27.5–32.6% 27.0–33.1% 26.1–34.1%
Bloco de Esquerda 9.5% 6.9% 6.0–8.2% 5.7–8.5% 5.4–8.8% 5.0–9.4%
Coligação Democrática Unitária 6.3% 5.0% 4.2–6.1% 3.9–6.4% 3.7–6.7% 3.4–7.2%
Iniciativa Liberal 1.3% 5.0% 4.2–6.1% 3.9–6.4% 3.7–6.7% 3.4–7.2%
Chega 1.3% 5.0% 4.2–6.1% 3.9–6.4% 3.7–6.7% 3.4–7.2%
Pessoas–Animais–Natureza 3.3% 3.0% 2.3–3.8% 2.2–4.1% 2.0–4.3% 1.8–4.8%
CDS–Partido Popular 4.2% 2.1% 1.6–2.8% 1.4–3.0% 1.3–3.2% 1.1–3.6%

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

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Confidence Intervals

Party Last Result Median 80% Confidence Interval 90% Confidence Interval 95% Confidence Interval 99% Confidence Interval
Partido Socialista 108 110 103–116 102–118 99–119 95–121
Partido Social Democrata 79 82 76–88 75–89 73–92 70–97
Bloco de Esquerda 19 13 8–15 7–16 7–17 7–18
Coligação Democrática Unitária 12 8 5–9 5–12 5–13 5–14
Iniciativa Liberal 1 6 6–10 5–11 4–12 4–12
Chega 1 7 4–10 4–10 3–11 3–11
Pessoas–Animais–Natureza 4 3 2–4 2–4 1–5 1–6
CDS–Partido Popular 5 1 0–1 0–2 0–2 0–3

Partido Socialista

For a full overview of the results for this party, see the Partido Socialista page.

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Number of Seats Probability Accumulated Special Marks
92 0% 100%  
93 0.1% 99.9%  
94 0.2% 99.8%  
95 0.4% 99.7%  
96 0.3% 99.3%  
97 0.4% 99.0%  
98 0.5% 98.6%  
99 0.7% 98%  
100 0.9% 97%  
101 1.3% 96%  
102 2% 95%  
103 3% 93%  
104 3% 90%  
105 5% 86%  
106 6% 82%  
107 9% 76%  
108 7% 67% Last Result
109 7% 60%  
110 8% 53% Median
111 6% 45%  
112 5% 38%  
113 7% 33%  
114 6% 26%  
115 5% 20%  
116 6% 15% Majority
117 2% 9%  
118 3% 7%  
119 2% 4%  
120 0.9% 2%  
121 0.7% 1.1%  
122 0.1% 0.4%  
123 0.1% 0.3%  
124 0.1% 0.2%  
125 0% 0.1%  
126 0% 0%  

Partido Social Democrata

For a full overview of the results for this party, see the Partido Social Democrata page.

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Number of Seats Probability Accumulated Special Marks
66 0% 100%  
67 0% 99.9%  
68 0.1% 99.9%  
69 0.1% 99.8%  
70 0.2% 99.7%  
71 0.5% 99.5%  
72 0.7% 99.0%  
73 1.1% 98%  
74 2% 97%  
75 2% 96%  
76 6% 93%  
77 10% 87%  
78 6% 77%  
79 7% 71% Last Result
80 7% 64%  
81 5% 58%  
82 11% 53% Median
83 6% 41%  
84 9% 35%  
85 6% 26%  
86 5% 20%  
87 4% 16%  
88 5% 12%  
89 2% 7%  
90 1.1% 5%  
91 0.7% 4%  
92 1.0% 3%  
93 0.9% 2%  
94 0.2% 1.2%  
95 0.3% 1.0%  
96 0.2% 0.7%  
97 0.2% 0.5%  
98 0.2% 0.3%  
99 0.1% 0.1%  
100 0% 0%  

Bloco de Esquerda

For a full overview of the results for this party, see the Bloco de Esquerda page.

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Number of Seats Probability Accumulated Special Marks
7 7% 100%  
8 4% 93%  
9 5% 89%  
10 6% 84%  
11 13% 77%  
12 12% 65%  
13 11% 52% Median
14 23% 41%  
15 12% 18%  
16 3% 7%  
17 1.5% 4%  
18 2% 2%  
19 0.2% 0.2% Last Result
20 0% 0.1%  
21 0% 0%  

Coligação Democrática Unitária

For a full overview of the results for this party, see the Coligação Democrática Unitária page.

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Number of Seats Probability Accumulated Special Marks
3 0.1% 100%  
4 0.2% 99.8%  
5 13% 99.7%  
6 17% 86%  
7 14% 69%  
8 44% 55% Median
9 3% 11%  
10 2% 8%  
11 1.3% 7%  
12 2% 5% Last Result
13 2% 3%  
14 0.9% 1.2%  
15 0.4% 0.4%  
16 0% 0%  

Iniciativa Liberal

For a full overview of the results for this party, see the Iniciativa Liberal page.

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Number of Seats Probability Accumulated Special Marks
1 0% 100% Last Result
2 0% 100%  
3 0.1% 100%  
4 3% 99.9%  
5 7% 97%  
6 50% 91% Median
7 8% 40%  
8 9% 32%  
9 9% 23%  
10 8% 14%  
11 2% 6%  
12 4% 4%  
13 0.2% 0.4%  
14 0.2% 0.2%  
15 0% 0%  

Chega

For a full overview of the results for this party, see the Chega page.

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Number of Seats Probability Accumulated Special Marks
1 0% 100% Last Result
2 0% 100%  
3 3% 100%  
4 20% 97%  
5 6% 77%  
6 10% 71%  
7 16% 61% Median
8 25% 45%  
9 8% 20%  
10 7% 12%  
11 5% 5%  
12 0.1% 0.2%  
13 0% 0.1%  
14 0% 0%  

Pessoas–Animais–Natureza

For a full overview of the results for this party, see the Pessoas–Animais–Natureza page.

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Number of Seats Probability Accumulated Special Marks
1 4% 100%  
2 43% 96%  
3 17% 53% Median
4 33% 35% Last Result
5 1.3% 3%  
6 1.2% 1.3%  
7 0% 0.1%  
8 0% 0.1%  
9 0% 0%  

For a full overview of the results for this party, see the CDS–Partido Popular page.

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Number of Seats Probability Accumulated Special Marks
0 32% 100%  
1 58% 68% Median
2 8% 9%  
3 1.0% 1.2%  
4 0.1% 0.2%  
5 0.1% 0.1% Last Result
6 0% 0%  

Coalitions

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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 139 129 99.2% 123–137 121–138 119–139 115–142
Partido Socialista – Bloco de Esquerda 127 122 91% 116–129 114–130 111–131 107–134
Partido Socialista – Coligação Democrática Unitária 120 117 63% 111–124 109–126 107–127 102–129
Partido Socialista 108 110 15% 103–116 102–118 99–119 95–121
Partido Social Democrata – CDS–Partido Popular 84 82 0% 77–89 75–90 74–93 71–98

Partido Socialista – Bloco de Esquerda – Coligação Democrática Unitária

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Number of Seats Probability Accumulated Special Marks
111 0% 100%  
112 0.1% 99.9%  
113 0.2% 99.9%  
114 0.1% 99.7%  
115 0.3% 99.6%  
116 0.3% 99.2% Majority
117 0.6% 98.9%  
118 0.4% 98%  
119 1.1% 98%  
120 1.1% 97%  
121 2% 96%  
122 2% 94%  
123 3% 92%  
124 4% 89%  
125 6% 85%  
126 8% 79%  
127 6% 71%  
128 6% 65%  
129 10% 59%  
130 6% 50%  
131 6% 43% Median
132 4% 37%  
133 8% 34%  
134 6% 26%  
135 3% 20%  
136 6% 17%  
137 4% 11%  
138 3% 6%  
139 1.3% 3% Last Result
140 0.7% 2%  
141 0.6% 1.1%  
142 0.3% 0.5%  
143 0.1% 0.2%  
144 0.1% 0.2%  
145 0% 0.1%  
146 0% 0%  

Partido Socialista – Bloco de Esquerda

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Number of Seats Probability Accumulated Special Marks
104 0% 100%  
105 0.1% 99.9%  
106 0.1% 99.8%  
107 0.3% 99.7%  
108 0.3% 99.4%  
109 0.5% 99.1%  
110 0.5% 98.6%  
111 0.7% 98%  
112 0.9% 97%  
113 1.3% 96%  
114 2% 95%  
115 2% 93%  
116 3% 91% Majority
117 5% 88%  
118 6% 83%  
119 8% 77%  
120 8% 69%  
121 8% 62%  
122 8% 54%  
123 5% 45% Median
124 4% 40%  
125 5% 36%  
126 9% 31%  
127 4% 22% Last Result
128 7% 18%  
129 5% 12%  
130 3% 7%  
131 1.4% 4%  
132 0.7% 2%  
133 0.9% 2%  
134 0.4% 0.8%  
135 0.2% 0.4%  
136 0% 0.1%  
137 0% 0.1%  
138 0% 0%  

Partido Socialista – Coligação Democrática Unitária

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Number of Seats Probability Accumulated Special Marks
99 0.1% 100%  
100 0.1% 99.9%  
101 0.2% 99.8%  
102 0.3% 99.6%  
103 0.4% 99.4%  
104 0.3% 99.0%  
105 0.4% 98.7%  
106 0.6% 98%  
107 1.0% 98%  
108 1.5% 97%  
109 2% 95%  
110 3% 94%  
111 5% 91%  
112 4% 86%  
113 6% 82%  
114 5% 76%  
115 8% 71%  
116 8% 63% Majority
117 6% 56%  
118 7% 49% Median
119 7% 42%  
120 6% 35% Last Result
121 6% 30%  
122 6% 24%  
123 4% 18%  
124 5% 14%  
125 2% 9%  
126 4% 7%  
127 2% 4%  
128 0.9% 2%  
129 0.2% 0.7%  
130 0.2% 0.5%  
131 0.1% 0.2%  
132 0% 0.1%  
133 0% 0.1%  
134 0% 0%  

Partido Socialista

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Number of Seats Probability Accumulated Special Marks
92 0% 100%  
93 0.1% 99.9%  
94 0.2% 99.8%  
95 0.4% 99.7%  
96 0.3% 99.3%  
97 0.4% 99.0%  
98 0.5% 98.6%  
99 0.7% 98%  
100 0.9% 97%  
101 1.3% 96%  
102 2% 95%  
103 3% 93%  
104 3% 90%  
105 5% 86%  
106 6% 82%  
107 9% 76%  
108 7% 67% Last Result
109 7% 60%  
110 8% 53% Median
111 6% 45%  
112 5% 38%  
113 7% 33%  
114 6% 26%  
115 5% 20%  
116 6% 15% Majority
117 2% 9%  
118 3% 7%  
119 2% 4%  
120 0.9% 2%  
121 0.7% 1.1%  
122 0.1% 0.4%  
123 0.1% 0.3%  
124 0.1% 0.2%  
125 0% 0.1%  
126 0% 0%  

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Number of Seats Probability Accumulated Special Marks
67 0% 100%  
68 0% 99.9%  
69 0.1% 99.9%  
70 0.2% 99.8%  
71 0.2% 99.6%  
72 0.4% 99.4%  
73 0.9% 99.0%  
74 1.3% 98%  
75 2% 97%  
76 3% 95%  
77 8% 92%  
78 8% 84%  
79 8% 76%  
80 4% 68%  
81 7% 64%  
82 9% 57%  
83 8% 49% Median
84 8% 41% Last Result
85 9% 33%  
86 6% 25%  
87 4% 19%  
88 4% 15%  
89 6% 12%  
90 1.4% 6%  
91 0.8% 4%  
92 0.6% 4%  
93 1.1% 3%  
94 0.9% 2%  
95 0.3% 1.1%  
96 0.1% 0.9%  
97 0.2% 0.7%  
98 0.3% 0.5%  
99 0.2% 0.2%  
100 0% 0.1%  
101 0% 0%  

Technical Information

Opinion Poll

Calculations