Opinion Poll by 40dB for Prisa, 25–27 September 2024
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 Popular (EPP) | 0.0% | 34.6% | 33.2–36.0% | 32.9–36.4% | 32.5–36.7% | 31.9–37.4% |
| Partido Socialista Obrero Español (S&D) | 0.0% | 29.7% | 28.4–31.0% | 28.0–31.4% | 27.7–31.7% | 27.1–32.4% |
| Vox (PfE) | 0.0% | 10.5% | 9.7–11.4% | 9.4–11.7% | 9.2–11.9% | 8.8–12.4% |
| Se Acabó La Fiesta (NI) | 0.0% | 4.9% | 4.3–5.6% | 4.2–5.8% | 4.0–5.9% | 3.8–6.3% |
| Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0.0% | 3.8% | 3.3–4.4% | 3.2–4.6% | 3.0–4.7% | 2.8–5.0% |
| Podemos (GUE/NGL) | 0.0% | 2.7% | 2.3–3.2% | 2.2–3.4% | 2.1–3.5% | 1.9–3.8% |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0.0% | 2.3% | 1.9–2.8% | 1.8–2.9% | 1.7–3.1% | 1.6–3.3% |
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 Popular (EPP) | 0 | 25 | 24–26 | 23–26 | 23–26 | 23–27 |
| Partido Socialista Obrero Español (S&D) | 0 | 21 | 20–22 | 20–22 | 20–23 | 19–23 |
| Vox (PfE) | 0 | 7 | 7–8 | 6–8 | 6–8 | 6–9 |
| Se Acabó La Fiesta (NI) | 0 | 3 | 3–4 | 3–4 | 2–4 | 2–4 |
| Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0 | 2 | 2–3 | 2–3 | 2–3 | 2–3 |
| Podemos (GUE/NGL) | 0 | 1 | 1–2 | 1–2 | 1–2 | 1–2 |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0 | 1 | 1–2 | 1–2 | 1–2 | 1–2 |
Partido Popular (EPP)
For a full overview of the results for this party, see the Partido Popular (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% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 0% | 100% | |
| 20 | 0% | 100% | |
| 21 | 0% | 100% | |
| 22 | 0.2% | 100% | |
| 23 | 6% | 99.8% | |
| 24 | 34% | 94% | |
| 25 | 44% | 59% | Median |
| 26 | 14% | 15% | |
| 27 | 1.2% | 1.2% | |
| 28 | 0% | 0% |
Partido Socialista Obrero Español (S&D)
For a full overview of the results for this party, see the Partido Socialista Obrero Español (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 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 1.3% | 100% | |
| 20 | 17% | 98.7% | |
| 21 | 50% | 82% | Median |
| 22 | 28% | 32% | |
| 23 | 4% | 4% | |
| 24 | 0.1% | 0.1% | |
| 25 | 0% | 0% |
Vox (PfE)
For a full overview of the results for this party, see the Vox (PfE) 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 | 8% | 100% | |
| 7 | 65% | 92% | Median |
| 8 | 26% | 26% | |
| 9 | 0.6% | 0.6% | |
| 10 | 0% | 0% |
Se Acabó La Fiesta (NI)
For a full overview of the results for this party, see the Se Acabó La Fiesta (NI) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 4% | 100% | |
| 3 | 83% | 96% | Median |
| 4 | 13% | 13% | |
| 5 | 0% | 0% |
Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA)
For a full overview of the results for this party, see the Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0.2% | 100% | |
| 2 | 74% | 99.8% | Median |
| 3 | 25% | 25% | |
| 4 | 0% | 0% |
Podemos (GUE/NGL)
For a full overview of the results for this party, see the Podemos (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 52% | 100% | Median |
| 2 | 48% | 48% | |
| 3 | 0% | 0% |
Movimiento Sumar–Izquierda Unida (GUE/NGL)
For a full overview of the results for this party, see the Movimiento Sumar–Izquierda Unida (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 87% | 100% | Median |
| 2 | 13% | 13% | |
| 3 | 0% | 0% |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Partido Popular (EPP) | 0 | 25 | 0% | 24–26 | 23–26 | 23–26 | 23–27 |
| Partido Socialista Obrero Español (S&D) | 0 | 21 | 0% | 20–22 | 20–22 | 20–23 | 19–23 |
| Vox (PfE) | 0 | 7 | 0% | 7–8 | 6–8 | 6–8 | 6–9 |
Partido Popular (EPP)

| 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% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 0% | 100% | |
| 20 | 0% | 100% | |
| 21 | 0% | 100% | |
| 22 | 0.2% | 100% | |
| 23 | 6% | 99.8% | |
| 24 | 34% | 94% | |
| 25 | 44% | 59% | Median |
| 26 | 14% | 15% | |
| 27 | 1.2% | 1.2% | |
| 28 | 0% | 0% |
Partido Socialista Obrero Español (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 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 1.3% | 100% | |
| 20 | 17% | 98.7% | |
| 21 | 50% | 82% | Median |
| 22 | 28% | 32% | |
| 23 | 4% | 4% | |
| 24 | 0.1% | 0.1% | |
| 25 | 0% | 0% |
Vox (PfE)

| 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 | 8% | 100% | |
| 7 | 65% | 92% | Median |
| 8 | 26% | 26% | |
| 9 | 0.6% | 0.6% | |
| 10 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: 40dB
- Commissioner(s): Prisa
- Fieldwork period: 25–27 September 2024
Calculations
- Sample size: 2000
- Simulations done: 2,097,152
- Error estimate: 0.94%