Opinion Poll by Metroscopia for El País, 4–13 December 2017
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 |
|---|---|---|---|---|---|---|
| Ciutadans–Partido de la Ciudadanía | 17.9% | 25.2% | 24.2–26.2% | 24.0–26.5% | 23.7–26.7% | 23.3–27.2% |
| Esquerra Republicana de Catalunya–Catalunya Sí | 39.6% | 23.1% | 22.2–24.1% | 21.9–24.3% | 21.7–24.6% | 21.2–25.0% |
| Partit dels Socialistes de Catalunya (PSC-PSOE) | 12.7% | 14.3% | 13.5–15.1% | 13.3–15.3% | 13.1–15.5% | 12.8–15.9% |
| Junts per Catalunya | 39.6% | 14.3% | 13.5–15.1% | 13.3–15.3% | 13.1–15.5% | 12.8–15.9% |
| Catalunya en Comú | 8.9% | 9.3% | 8.7–10.0% | 8.5–10.2% | 8.4–10.3% | 8.1–10.7% |
| Candidatura d’Unitat Popular | 8.2% | 6.4% | 5.9–7.0% | 5.7–7.1% | 5.6–7.3% | 5.4–7.6% |
| Partit Popular | 8.5% | 5.4% | 4.9–5.9% | 4.8–6.1% | 4.7–6.2% | 4.5–6.5% |
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 |
|---|---|---|---|---|---|---|
| Ciutadans–Partido de la Ciudadanía | 25 | 34 | 33–36 | 33–36 | 33–37 | 32–38 |
| Esquerra Republicana de Catalunya–Catalunya Sí | 20 | 35 | 34–37 | 33–38 | 33–38 | 32–39 |
| Partit dels Socialistes de Catalunya (PSC-PSOE) | 16 | 18 | 17–20 | 16–21 | 16–21 | 16–22 |
| Junts per Catalunya | 29 | 22 | 20–23 | 19–23 | 19–23 | 18–24 |
| Catalunya en Comú | 11 | 11 | 9–12 | 9–12 | 9–13 | 9–13 |
| Candidatura d’Unitat Popular | 10 | 8 | 8–9 | 8–9 | 8–9 | 7–9 |
| Partit Popular | 11 | 6 | 5–7 | 5–7 | 5–7 | 5–8 |
Ciutadans–Partido de la Ciudadanía
For a full overview of the results for this party, see the Ciutadans–Partido de la Ciudadanía page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 25 | 0% | 100% | Last Result |
| 26 | 0% | 100% | |
| 27 | 0% | 100% | |
| 28 | 0% | 100% | |
| 29 | 0% | 100% | |
| 30 | 0% | 100% | |
| 31 | 0.2% | 100% | |
| 32 | 0.7% | 99.8% | |
| 33 | 13% | 99.0% | |
| 34 | 47% | 86% | Median |
| 35 | 26% | 39% | |
| 36 | 8% | 13% | |
| 37 | 3% | 5% | |
| 38 | 2% | 2% | |
| 39 | 0.1% | 0.1% | |
| 40 | 0% | 0% |
Esquerra Republicana de Catalunya–Catalunya Sí
For a full overview of the results for this party, see the Esquerra Republicana de Catalunya–Catalunya Sí page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 20 | 0% | 100% | Last Result |
| 21 | 0% | 100% | |
| 22 | 0% | 100% | |
| 23 | 0% | 100% | |
| 24 | 0% | 100% | |
| 25 | 0% | 100% | |
| 26 | 0% | 100% | |
| 27 | 0% | 100% | |
| 28 | 0% | 100% | |
| 29 | 0% | 100% | |
| 30 | 0% | 100% | |
| 31 | 0.1% | 100% | |
| 32 | 1.1% | 99.9% | |
| 33 | 5% | 98.8% | |
| 34 | 8% | 94% | |
| 35 | 37% | 85% | Median |
| 36 | 20% | 49% | |
| 37 | 24% | 29% | |
| 38 | 4% | 5% | |
| 39 | 1.4% | 1.5% | |
| 40 | 0.1% | 0.1% | |
| 41 | 0% | 0% |
Partit dels Socialistes de Catalunya (PSC-PSOE)
For a full overview of the results for this party, see the Partit dels Socialistes de Catalunya (PSC-PSOE) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 15 | 0.1% | 100% | |
| 16 | 8% | 99.9% | Last Result |
| 17 | 14% | 92% | |
| 18 | 42% | 79% | Median |
| 19 | 22% | 37% | |
| 20 | 10% | 15% | |
| 21 | 3% | 5% | |
| 22 | 2% | 2% | |
| 23 | 0% | 0% |
Junts per Catalunya
For a full overview of the results for this party, see the Junts per Catalunya page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 18 | 2% | 100% | |
| 19 | 3% | 98% | |
| 20 | 5% | 94% | |
| 21 | 25% | 90% | |
| 22 | 37% | 64% | Median |
| 23 | 26% | 27% | |
| 24 | 0.6% | 0.7% | |
| 25 | 0.1% | 0.1% | |
| 26 | 0% | 0% | |
| 27 | 0% | 0% | |
| 28 | 0% | 0% | |
| 29 | 0% | 0% | Last Result |
Catalunya en Comú
For a full overview of the results for this party, see the Catalunya en Comú page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 8 | 0.1% | 100% | |
| 9 | 12% | 99.9% | |
| 10 | 8% | 88% | |
| 11 | 65% | 80% | Last Result, Median |
| 12 | 12% | 16% | |
| 13 | 3% | 4% | |
| 14 | 0.2% | 0.2% | |
| 15 | 0% | 0% |
Candidatura d’Unitat Popular
For a full overview of the results for this party, see the Candidatura d’Unitat Popular page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 6 | 0.1% | 100% | |
| 7 | 1.4% | 99.9% | |
| 8 | 69% | 98% | Median |
| 9 | 30% | 30% | |
| 10 | 0.2% | 0.2% | Last Result |
| 11 | 0% | 0% |
Partit Popular
For a full overview of the results for this party, see the Partit Popular page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 3 | 0.1% | 100% | |
| 4 | 0.4% | 99.9% | |
| 5 | 43% | 99.5% | |
| 6 | 39% | 56% | Median |
| 7 | 17% | 17% | |
| 8 | 0.7% | 0.7% | |
| 9 | 0.1% | 0.1% | |
| 10 | 0% | 0% | |
| 11 | 0% | 0% | Last Result |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Ciutadans–Partido de la Ciudadanía – Partit dels Socialistes de Catalunya (PSC-PSOE) – Catalunya en Comú – Partit Popular | 63 | 69 | 87% | 67–71 | 67–72 | 67–73 | 66–73 |
| Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya – Catalunya en Comú | 60 | 68 | 70% | 66–70 | 66–71 | 65–71 | 64–72 |
| Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya – Candidatura d’Unitat Popular | 59 | 66 | 13% | 64–68 | 63–68 | 62–68 | 62–69 |
| Esquerra Republicana de Catalunya–Catalunya Sí – Partit dels Socialistes de Catalunya (PSC-PSOE) – Catalunya en Comú | 47 | 65 | 4% | 63–67 | 63–67 | 62–68 | 61–69 |
| Ciutadans–Partido de la Ciudadanía – Partit dels Socialistes de Catalunya (PSC-PSOE) – Partit Popular | 52 | 58 | 0% | 57–61 | 56–61 | 56–62 | 55–63 |
| Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya | 49 | 57 | 0% | 55–59 | 55–60 | 54–60 | 53–61 |
Ciutadans–Partido de la Ciudadanía – Partit dels Socialistes de Catalunya (PSC-PSOE) – Catalunya en Comú – Partit Popular
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 63 | 0% | 100% | Last Result |
| 64 | 0% | 100% | |
| 65 | 0.1% | 100% | |
| 66 | 2% | 99.9% | |
| 67 | 11% | 98% | |
| 68 | 17% | 87% | Majority |
| 69 | 26% | 70% | Median |
| 70 | 20% | 44% | |
| 71 | 14% | 24% | |
| 72 | 7% | 10% | |
| 73 | 3% | 3% | |
| 74 | 0.4% | 0.5% | |
| 75 | 0.1% | 0.1% | |
| 76 | 0% | 0% |
Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya – Catalunya en Comú
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 60 | 0% | 100% | Last Result |
| 61 | 0% | 100% | |
| 62 | 0% | 100% | |
| 63 | 0.2% | 100% | |
| 64 | 0.9% | 99.7% | |
| 65 | 4% | 98.8% | |
| 66 | 8% | 95% | |
| 67 | 18% | 87% | |
| 68 | 26% | 70% | Median, Majority |
| 69 | 22% | 44% | |
| 70 | 15% | 21% | |
| 71 | 6% | 6% | |
| 72 | 0.7% | 0.8% | |
| 73 | 0% | 0% |
Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya – Candidatura d’Unitat Popular
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 59 | 0% | 100% | Last Result |
| 60 | 0.1% | 100% | |
| 61 | 0.4% | 99.9% | |
| 62 | 3% | 99.5% | |
| 63 | 7% | 97% | |
| 64 | 14% | 90% | |
| 65 | 20% | 76% | Median |
| 66 | 26% | 56% | |
| 67 | 17% | 30% | |
| 68 | 11% | 13% | Majority |
| 69 | 2% | 2% | |
| 70 | 0.1% | 0.1% | |
| 71 | 0% | 0% |
Esquerra Republicana de Catalunya–Catalunya Sí – Partit dels Socialistes de Catalunya (PSC-PSOE) – Catalunya en Comú
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 47 | 0% | 100% | Last Result |
| 48 | 0% | 100% | |
| 49 | 0% | 100% | |
| 50 | 0% | 100% | |
| 51 | 0% | 100% | |
| 52 | 0% | 100% | |
| 53 | 0% | 100% | |
| 54 | 0% | 100% | |
| 55 | 0% | 100% | |
| 56 | 0% | 100% | |
| 57 | 0% | 100% | |
| 58 | 0% | 100% | |
| 59 | 0% | 100% | |
| 60 | 0.3% | 100% | |
| 61 | 1.4% | 99.6% | |
| 62 | 3% | 98% | |
| 63 | 8% | 95% | |
| 64 | 29% | 87% | Median |
| 65 | 32% | 58% | |
| 66 | 16% | 26% | |
| 67 | 7% | 10% | |
| 68 | 3% | 4% | Majority |
| 69 | 0.9% | 1.1% | |
| 70 | 0.2% | 0.2% | |
| 71 | 0% | 0% |
Ciutadans–Partido de la Ciudadanía – Partit dels Socialistes de Catalunya (PSC-PSOE) – Partit Popular
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 52 | 0% | 100% | Last Result |
| 53 | 0% | 100% | |
| 54 | 0.1% | 100% | |
| 55 | 2% | 99.9% | |
| 56 | 7% | 98% | |
| 57 | 17% | 91% | |
| 58 | 26% | 73% | Median |
| 59 | 22% | 47% | |
| 60 | 14% | 25% | |
| 61 | 7% | 10% | |
| 62 | 3% | 3% | |
| 63 | 0.6% | 0.8% | |
| 64 | 0.1% | 0.2% | |
| 65 | 0% | 0% |
Esquerra Republicana de Catalunya–Catalunya Sí – Junts per Catalunya
| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 49 | 0% | 100% | Last Result |
| 50 | 0% | 100% | |
| 51 | 0% | 100% | |
| 52 | 0.1% | 100% | |
| 53 | 0.6% | 99.9% | |
| 54 | 4% | 99.3% | |
| 55 | 8% | 96% | |
| 56 | 17% | 88% | |
| 57 | 23% | 71% | Median |
| 58 | 23% | 48% | |
| 59 | 17% | 25% | |
| 60 | 8% | 8% | |
| 61 | 0.7% | 0.7% | |
| 62 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: Metroscopia
- Commissioner(s): El País
- Fieldwork period: 4–13 December 2017
Calculations
- Sample size: 3300
- Simulations done: 8,388,608
- Error estimate: 0.34%