Opinion Poll by CESOP–UCP, 29 October–4 November 2021
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% |
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
Partido Socialista
For a full overview of the results for this party, see the Partido Socialista page.

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.

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.

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.

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.

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.

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.

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% |
|
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 |
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

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

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

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

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

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 – CDS–Partido Popular

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% |
|
Opinion Poll
- Polling firm: CESOP–UCP
- Commissioner(s): —
- Fieldwork period: 29 October–4 November 2021
Calculations
- Sample size: 878
- Simulations done: 1,048,576
- Error estimate: 1.87%