Opinion Poll by More in Common, 24–28 August 2026
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% | 28.7% | 27.5–30.0% | 27.1–30.3% | 26.8–30.7% | 26.2–31.3% |
| Partido Socialista Obrero Español (S&D) | 0.0% | 27.0% | 25.8–28.3% | 25.5–28.6% | 25.2–28.9% | 24.6–29.5% |
| Vox (PfE) | 0.0% | 20.3% | 19.2–21.4% | 18.9–21.8% | 18.6–22.1% | 18.1–22.6% |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0.0% | 3.8% | 3.3–4.4% | 3.2–4.5% | 3.0–4.7% | 2.8–5.0% |
| Podemos (GUE/NGL) | 0.0% | 3.6% | 3.1–4.2% | 3.0–4.3% | 2.9–4.5% | 2.7–4.8% |
| Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0.0% | 2.8% | 2.4–3.4% | 2.3–3.5% | 2.2–3.6% | 2.0–3.9% |
| Se Acabó La Fiesta (NI) | 0.0% | 2.3% | 1.9–2.8% | 1.8–2.9% | 1.7–3.0% | 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 | 20 | 19–21 | 19–21 | 19–22 | 18–22 |
| Partido Socialista Obrero Español (S&D) | 0 | 19 | 18–20 | 18–20 | 18–20 | 17–21 |
| Vox (PfE) | 0 | 14 | 13–15 | 13–15 | 13–15 | 13–16 |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0 | 2 | 2–3 | 2–3 | 2–3 | 2–3 |
| Podemos (GUE/NGL) | 0 | 2 | 2 | 2–3 | 2–3 | 1–3 |
| Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0 | 2 | 1–2 | 1–2 | 1–2 | 1–3 |
| Se Acabó La Fiesta (NI) | 0 | 1 | 1 | 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 | 0.7% | 100% | |
| 19 | 12% | 99.3% | |
| 20 | 47% | 87% | Median |
| 21 | 37% | 40% | |
| 22 | 3% | 3% | |
| 23 | 0.1% | 0.1% | |
| 24 | 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 | 1.2% | 100% | |
| 18 | 21% | 98.8% | |
| 19 | 52% | 78% | Median |
| 20 | 24% | 25% | |
| 21 | 2% | 2% | |
| 22 | 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 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0.3% | 100% | |
| 13 | 12% | 99.7% | |
| 14 | 63% | 87% | Median |
| 15 | 22% | 24% | |
| 16 | 2% | 2% | |
| 17 | 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 | 0% | 100% | |
| 2 | 50% | 100% | Median |
| 3 | 49% | 50% | |
| 4 | 0.4% | 0.4% | |
| 5 | 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 | 1.1% | 100% | |
| 2 | 90% | 98.9% | Median |
| 3 | 9% | 9% | |
| 4 | 0% | 0% |
Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA)
For a full overview of the results for this party, see the Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 16% | 100% | |
| 2 | 82% | 84% | Median |
| 3 | 2% | 2% | |
| 4 | 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 | 90% | 100% | Median |
| 2 | 10% | 10% | |
| 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 | 20 | 0% | 19–21 | 19–21 | 19–22 | 18–22 |
| Partido Socialista Obrero Español (S&D) | 0 | 19 | 0% | 18–20 | 18–20 | 18–20 | 17–21 |
| Vox (PfE) | 0 | 14 | 0% | 13–15 | 13–15 | 13–15 | 13–16 |
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 | 0.7% | 100% | |
| 19 | 12% | 99.3% | |
| 20 | 47% | 87% | Median |
| 21 | 37% | 40% | |
| 22 | 3% | 3% | |
| 23 | 0.1% | 0.1% | |
| 24 | 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 | 1.2% | 100% | |
| 18 | 21% | 98.8% | |
| 19 | 52% | 78% | Median |
| 20 | 24% | 25% | |
| 21 | 2% | 2% | |
| 22 | 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 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0.3% | 100% | |
| 13 | 12% | 99.7% | |
| 14 | 63% | 87% | Median |
| 15 | 22% | 24% | |
| 16 | 2% | 2% | |
| 17 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: More in Common
- Commissioner(s): —
- Fieldwork period: 24–28 August 2026
Calculations
- Sample size: 2144
- Simulations done: 2,097,152
- Error estimate: 0.90%