Opinion Poll by CESOP–UCP for Público and RTP, 21–24 April 2025
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 |
|---|---|---|---|---|---|---|
| Aliança Democrática (EPP) | 0.0% | 32.0% | 30.3–33.8% | 29.9–34.3% | 29.4–34.7% | 28.7–35.5% |
| Partido Socialista (S&D) | 0.0% | 26.0% | 24.4–27.7% | 24.0–28.2% | 23.6–28.6% | 22.9–29.4% |
| Chega (PfE) | 0.0% | 19.0% | 17.6–20.5% | 17.2–21.0% | 16.9–21.3% | 16.2–22.1% |
| Iniciativa Liberal (RE) | 0.0% | 6.0% | 5.2–7.0% | 5.0–7.3% | 4.8–7.5% | 4.5–8.0% |
| LIVRE (Greens/EFA) | 0.0% | 5.0% | 4.3–5.9% | 4.1–6.2% | 3.9–6.4% | 3.6–6.9% |
| Coligação Democrática Unitária (GUE/NGL) | 0.0% | 4.0% | 3.4–4.9% | 3.2–5.1% | 3.1–5.3% | 2.8–5.7% |
| Bloco de Esquerda (GUE/NGL) | 0.0% | 3.0% | 2.4–3.7% | 2.3–3.9% | 2.1–4.1% | 1.9–4.5% |
| Pessoas–Animais–Natureza (Greens/EFA) | 0.0% | 1.0% | 0.7–1.5% | 0.6–1.6% | 0.6–1.7% | 0.5–2.0% |
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 |
|---|---|---|---|---|---|---|
| Aliança Democrática (EPP) | 0 | 8 | 7–8 | 7–8 | 7–8 | 7–9 |
| Partido Socialista (S&D) | 0 | 6 | 6–7 | 5–7 | 5–7 | 5–7 |
| Chega (PfE) | 0 | 4 | 4–5 | 4–5 | 4–5 | 4–5 |
| Iniciativa Liberal (RE) | 0 | 1 | 1 | 1 | 1 | 1–2 |
| LIVRE (Greens/EFA) | 0 | 1 | 1 | 1 | 0–1 | 0–1 |
| Coligação Democrática Unitária (GUE/NGL) | 0 | 1 | 0–1 | 0–1 | 0–1 | 0–1 |
| Bloco de Esquerda (GUE/NGL) | 0 | 0 | 0 | 0 | 0–1 | 0–1 |
| Pessoas–Animais–Natureza (Greens/EFA) | 0 | 0 | 0 | 0 | 0 | 0 |
Aliança Democrática (EPP)
For a full overview of the results for this party, see the Aliança Democrática (EPP) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0.3% | 100% | |
| 7 | 44% | 99.7% | |
| 8 | 54% | 55% | Median |
| 9 | 1.0% | 1.0% | |
| 10 | 0% | 0% |
Partido Socialista (S&D)
For a full overview of the results for this party, see the Partido Socialista (S&D) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 6% | 100% | |
| 6 | 84% | 94% | Median |
| 7 | 10% | 10% | |
| 8 | 0% | 0% |
Chega (PfE)
For a full overview of the results for this party, see the Chega (PfE) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0.3% | 100% | |
| 4 | 74% | 99.7% | Median |
| 5 | 26% | 26% | |
| 6 | 0% | 0% |
Iniciativa Liberal (RE)
For a full overview of the results for this party, see the Iniciativa Liberal (RE) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 99.3% | 100% | Median |
| 2 | 0.7% | 0.7% | |
| 3 | 0% | 0% |
LIVRE (Greens/EFA)
For a full overview of the results for this party, see the LIVRE (Greens/EFA) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 3% | 100% | Last Result |
| 1 | 97% | 97% | Median |
| 2 | 0% | 0% |
Coligação Democrática Unitária (GUE/NGL)
For a full overview of the results for this party, see the Coligação Democrática Unitária (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 43% | 100% | Last Result |
| 1 | 57% | 57% | Median |
| 2 | 0% | 0% |
Bloco de Esquerda (GUE/NGL)
For a full overview of the results for this party, see the Bloco de Esquerda (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 97% | 100% | Last Result, Median |
| 1 | 3% | 3% | |
| 2 | 0% | 0% |
Pessoas–Animais–Natureza (Greens/EFA)
For a full overview of the results for this party, see the Pessoas–Animais–Natureza (Greens/EFA) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 100% | 100% | Last Result, Median |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Partido Socialista (S&D) | 0 | 6 | 0% | 6–7 | 5–7 | 5–7 | 5–7 |
| Chega (PfE) | 0 | 4 | 0% | 4–5 | 4–5 | 4–5 | 4–5 |
| Coligação Democrática Unitária (GUE/NGL) – Bloco de Esquerda (GUE/NGL) | 0 | 1 | 0% | 0–1 | 0–1 | 0–1 | 0–2 |
| LIVRE (Greens/EFA) – Pessoas–Animais–Natureza (Greens/EFA) | 0 | 1 | 0% | 1 | 1 | 0–1 | 0–1 |
Partido Socialista (S&D)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 6% | 100% | |
| 6 | 84% | 94% | Median |
| 7 | 10% | 10% | |
| 8 | 0% | 0% |
Chega (PfE)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0.3% | 100% | |
| 4 | 74% | 99.7% | Median |
| 5 | 26% | 26% | |
| 6 | 0% | 0% |
Coligação Democrática Unitária (GUE/NGL) – Bloco de Esquerda (GUE/NGL)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 41% | 100% | Last Result |
| 1 | 57% | 59% | Median |
| 2 | 1.4% | 1.4% | |
| 3 | 0% | 0% |
LIVRE (Greens/EFA) – Pessoas–Animais–Natureza (Greens/EFA)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 3% | 100% | Last Result |
| 1 | 97% | 97% | Median |
| 2 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: CESOP–UCP
- Commissioner(s): Público and RTP
- Fieldwork period: 21–24 April 2025
Calculations
- Sample size: 1215
- Simulations done: 2,097,152
- Error estimate: 0.52%