Opinion Poll by MMR for Morgunblaðið, 15–17 September 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 |
|---|---|---|---|---|---|---|
| Sjálfstæðisflokkurinn | 25.2% | 20.3% | 18.9–21.8% | 18.5–22.2% | 18.2–22.6% | 17.5–23.3% |
| Samfylkingin | 12.1% | 13.0% | 11.8–14.3% | 11.5–14.6% | 11.2–14.9% | 10.7–15.6% |
| Framsóknarflokkurinn | 10.7% | 12.7% | 11.6–14.0% | 11.3–14.4% | 11.0–14.7% | 10.5–15.3% |
| Vinstrihreyfingin – grænt framboð | 16.9% | 12.1% | 11.0–13.4% | 10.7–13.7% | 10.4–14.0% | 9.9–14.6% |
| Píratar | 9.2% | 11.8% | 10.7–13.0% | 10.4–13.4% | 10.1–13.7% | 9.6–14.3% |
| Viðreisn | 6.7% | 10.7% | 9.6–11.9% | 9.3–12.2% | 9.1–12.5% | 8.6–13.1% |
| Sósíalistaflokkur Íslands | 0.0% | 8.6% | 7.7–9.7% | 7.4–10.0% | 7.2–10.3% | 6.7–10.8% |
| Flokkur fólksins | 6.9% | 5.6% | 4.8–6.5% | 4.6–6.8% | 4.4–7.0% | 4.1–7.4% |
| Miðflokkurinn | 10.9% | 4.6% | 3.9–5.5% | 3.7–5.7% | 3.6–5.9% | 3.3–6.4% |
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 |
|---|---|---|---|---|---|---|
| Sjálfstæðisflokkurinn | 16 | 13 | 13–15 | 12–15 | 12–15 | 11–16 |
| Samfylkingin | 7 | 8 | 7–9 | 7–10 | 7–10 | 7–10 |
| Framsóknarflokkurinn | 8 | 9 | 8–10 | 8–10 | 8–11 | 7–11 |
| Vinstrihreyfingin – grænt framboð | 11 | 8 | 7–9 | 7–10 | 6–10 | 6–10 |
| Píratar | 6 | 7 | 7–8 | 6–9 | 6–9 | 6–9 |
| Viðreisn | 4 | 7 | 6–8 | 6–8 | 6–8 | 5–8 |
| Sósíalistaflokkur Íslands | 0 | 5 | 4–6 | 4–6 | 4–7 | 4–7 |
| Flokkur fólksins | 4 | 3 | 0–4 | 0–4 | 0–4 | 0–5 |
| Miðflokkurinn | 7 | 1 | 0–3 | 0–3 | 0–3 | 0–4 |
Sjálfstæðisflokkurinn
For a full overview of the results for this party, see the Sjálfstæðisflokkurinn page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 11 | 0.7% | 100% | |
| 12 | 5% | 99.3% | |
| 13 | 49% | 94% | Median |
| 14 | 33% | 45% | |
| 15 | 10% | 12% | |
| 16 | 2% | 2% | Last Result |
| 17 | 0.2% | 0.2% | |
| 18 | 0% | 0% |
Samfylkingin
For a full overview of the results for this party, see the Samfylkingin page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 6 | 0.3% | 100% | |
| 7 | 13% | 99.7% | Last Result |
| 8 | 51% | 87% | Median |
| 9 | 31% | 36% | |
| 10 | 5% | 5% | |
| 11 | 0.3% | 0.3% | |
| 12 | 0% | 0% |
Framsóknarflokkurinn
For a full overview of the results for this party, see the Framsóknarflokkurinn page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 6 | 0.1% | 100% | |
| 7 | 2% | 99.9% | |
| 8 | 10% | 98% | Last Result |
| 9 | 38% | 88% | Median |
| 10 | 47% | 50% | |
| 11 | 2% | 3% | |
| 12 | 0.3% | 0.4% | |
| 13 | 0.1% | 0.1% | |
| 14 | 0% | 0% |
Vinstrihreyfingin – grænt framboð
For a full overview of the results for this party, see the Vinstrihreyfingin – grænt framboð page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 6 | 5% | 100% | |
| 7 | 26% | 95% | |
| 8 | 45% | 70% | Median |
| 9 | 19% | 24% | |
| 10 | 6% | 6% | |
| 11 | 0% | 0% | Last Result |
Píratar
For a full overview of the results for this party, see the Píratar page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 5 | 0.1% | 100% | |
| 6 | 6% | 99.9% | Last Result |
| 7 | 45% | 94% | Median |
| 8 | 42% | 49% | |
| 9 | 6% | 6% | |
| 10 | 0.2% | 0.2% | |
| 11 | 0% | 0% |
Viðreisn
For a full overview of the results for this party, see the Viðreisn page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 4 | 0% | 100% | Last Result |
| 5 | 2% | 100% | |
| 6 | 44% | 98% | |
| 7 | 42% | 55% | Median |
| 8 | 13% | 13% | |
| 9 | 0.5% | 0.5% | |
| 10 | 0% | 0% |
Sósíalistaflokkur Íslands
For a full overview of the results for this party, see the Sósíalistaflokkur Íslands page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 10% | 100% | |
| 5 | 52% | 90% | Median |
| 6 | 35% | 38% | |
| 7 | 3% | 3% | |
| 8 | 0% | 0% |
Flokkur fólksins
For a full overview of the results for this party, see the Flokkur fólksins page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 14% | 100% | |
| 1 | 0% | 86% | |
| 2 | 0% | 86% | |
| 3 | 44% | 86% | Median |
| 4 | 42% | 42% | Last Result |
| 5 | 0.5% | 0.5% | |
| 6 | 0% | 0% |
Miðflokkurinn
For a full overview of the results for this party, see the Miðflokkurinn page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 13% | 100% | |
| 1 | 63% | 87% | Median |
| 2 | 0.3% | 24% | |
| 3 | 22% | 24% | |
| 4 | 2% | 2% | |
| 5 | 0% | 0% | |
| 6 | 0% | 0% | |
| 7 | 0% | 0% | Last Result |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Sjálfstæðisflokkurinn – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð | 35 | 31 | 30% | 29–32 | 29–33 | 29–33 | 27–34 |
| Samfylkingin – Vinstrihreyfingin – grænt framboð – Píratar – Viðreisn | 28 | 30 | 21% | 29–32 | 29–33 | 28–33 | 27–34 |
| Samfylkingin – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð – Miðflokkurinn | 33 | 27 | 0.1% | 25–29 | 25–29 | 25–30 | 24–31 |
| Samfylkingin – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð | 26 | 26 | 0% | 24–27 | 24–28 | 23–28 | 23–29 |
| Sjálfstæðisflokkurinn – Framsóknarflokkurinn – Miðflokkurinn | 31 | 24 | 0% | 23–26 | 22–26 | 22–27 | 21–28 |
| Samfylkingin – Vinstrihreyfingin – grænt framboð – Píratar | 24 | 24 | 0% | 22–25 | 22–26 | 22–26 | 21–27 |
| Sjálfstæðisflokkurinn – Framsóknarflokkurinn | 24 | 23 | 0% | 22–24 | 21–25 | 21–25 | 20–26 |
| Sjálfstæðisflokkurinn – Samfylkingin | 23 | 22 | 0% | 20–23 | 20–24 | 20–24 | 19–25 |
| Sjálfstæðisflokkurinn – Vinstrihreyfingin – grænt framboð | 27 | 22 | 0% | 20–23 | 20–23 | 19–24 | 18–24 |
| Sjálfstæðisflokkurinn – Viðreisn | 20 | 20 | 0% | 19–22 | 19–22 | 18–22 | 18–23 |
| Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð – Miðflokkurinn | 26 | 19 | 0% | 17–21 | 17–21 | 16–21 | 15–22 |
| Samfylkingin – Vinstrihreyfingin – grænt framboð – Miðflokkurinn | 25 | 17 | 0% | 16–19 | 16–20 | 16–20 | 15–22 |
| Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð | 19 | 17 | 0% | 16–19 | 16–19 | 15–20 | 14–20 |
| Samfylkingin – Vinstrihreyfingin – grænt framboð | 18 | 16 | 0% | 15–18 | 15–18 | 14–18 | 14–19 |
| Vinstrihreyfingin – grænt framboð – Píratar | 17 | 15 | 0% | 14–17 | 14–17 | 13–18 | 13–18 |
| Sjálfstæðisflokkurinn – Miðflokkurinn | 23 | 15 | 0% | 13–16 | 13–17 | 13–17 | 12–18 |
| Vinstrihreyfingin – grænt framboð – Miðflokkurinn | 18 | 9 | 0% | 8–11 | 8–11 | 7–12 | 7–13 |
Sjálfstæðisflokkurinn – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 27 | 0.8% | 100% | |
| 28 | 2% | 99.1% | |
| 29 | 9% | 98% | |
| 30 | 27% | 88% | Median |
| 31 | 32% | 62% | |
| 32 | 21% | 30% | Majority |
| 33 | 7% | 8% | |
| 34 | 1.2% | 1.4% | |
| 35 | 0.2% | 0.2% | Last Result |
| 36 | 0% | 0% |
Samfylkingin – Vinstrihreyfingin – grænt framboð – Píratar – Viðreisn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 26 | 0.3% | 100% | |
| 27 | 0.6% | 99.7% | |
| 28 | 3% | 99.1% | Last Result |
| 29 | 28% | 96% | |
| 30 | 24% | 69% | Median |
| 31 | 24% | 45% | |
| 32 | 13% | 21% | Majority |
| 33 | 6% | 8% | |
| 34 | 2% | 2% | |
| 35 | 0.2% | 0.2% | |
| 36 | 0% | 0% |
Samfylkingin – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 23 | 0.1% | 100% | |
| 24 | 2% | 99.9% | |
| 25 | 10% | 98% | |
| 26 | 28% | 89% | Median |
| 27 | 28% | 61% | |
| 28 | 19% | 33% | |
| 29 | 11% | 14% | |
| 30 | 2% | 3% | |
| 31 | 0.6% | 0.7% | |
| 32 | 0.1% | 0.1% | Majority |
| 33 | 0% | 0% | Last Result |
Samfylkingin – Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 22 | 0.2% | 100% | |
| 23 | 3% | 99.8% | |
| 24 | 13% | 96% | |
| 25 | 29% | 83% | Median |
| 26 | 34% | 54% | Last Result |
| 27 | 12% | 20% | |
| 28 | 6% | 7% | |
| 29 | 0.9% | 1.0% | |
| 30 | 0.1% | 0.1% | |
| 31 | 0% | 0% |
Sjálfstæðisflokkurinn – Framsóknarflokkurinn – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 20 | 0.2% | 100% | |
| 21 | 0.8% | 99.8% | |
| 22 | 8% | 99.0% | |
| 23 | 21% | 91% | Median |
| 24 | 26% | 70% | |
| 25 | 26% | 45% | |
| 26 | 14% | 19% | |
| 27 | 3% | 4% | |
| 28 | 0.5% | 0.7% | |
| 29 | 0.1% | 0.2% | |
| 30 | 0% | 0% | |
| 31 | 0% | 0% | Last Result |
Samfylkingin – Vinstrihreyfingin – grænt framboð – Píratar

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 20 | 0.3% | 100% | |
| 21 | 1.3% | 99.7% | |
| 22 | 9% | 98% | |
| 23 | 39% | 89% | Median |
| 24 | 26% | 50% | Last Result |
| 25 | 15% | 24% | |
| 26 | 7% | 9% | |
| 27 | 2% | 2% | |
| 28 | 0.2% | 0.2% | |
| 29 | 0% | 0% |
Sjálfstæðisflokkurinn – Framsóknarflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 19 | 0.5% | 100% | |
| 20 | 1.5% | 99.5% | |
| 21 | 5% | 98% | |
| 22 | 28% | 93% | Median |
| 23 | 35% | 65% | |
| 24 | 25% | 30% | Last Result |
| 25 | 4% | 5% | |
| 26 | 1.3% | 1.4% | |
| 27 | 0.1% | 0.1% | |
| 28 | 0% | 0% |
Sjálfstæðisflokkurinn – Samfylkingin

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 18 | 0.1% | 100% | |
| 19 | 1.1% | 99.9% | |
| 20 | 9% | 98.8% | |
| 21 | 31% | 90% | Median |
| 22 | 36% | 59% | |
| 23 | 13% | 23% | Last Result |
| 24 | 9% | 10% | |
| 25 | 0.8% | 1.1% | |
| 26 | 0.3% | 0.3% | |
| 27 | 0% | 0% |
Sjálfstæðisflokkurinn – Vinstrihreyfingin – grænt framboð

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 18 | 0.5% | 100% | |
| 19 | 3% | 99.5% | |
| 20 | 14% | 97% | |
| 21 | 32% | 82% | Median |
| 22 | 35% | 50% | |
| 23 | 11% | 15% | |
| 24 | 3% | 3% | |
| 25 | 0.4% | 0.5% | |
| 26 | 0% | 0% | |
| 27 | 0% | 0% | Last Result |
Sjálfstæðisflokkurinn – Viðreisn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 17 | 0.2% | 100% | |
| 18 | 3% | 99.8% | |
| 19 | 22% | 97% | |
| 20 | 41% | 75% | Last Result, Median |
| 21 | 24% | 34% | |
| 22 | 8% | 10% | |
| 23 | 2% | 2% | |
| 24 | 0.3% | 0.4% | |
| 25 | 0% | 0% |
Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 15 | 0.5% | 100% | |
| 16 | 2% | 99.4% | |
| 17 | 19% | 97% | |
| 18 | 19% | 78% | Median |
| 19 | 34% | 59% | |
| 20 | 15% | 25% | |
| 21 | 8% | 10% | |
| 22 | 1.2% | 2% | |
| 23 | 0.4% | 0.5% | |
| 24 | 0% | 0% | |
| 25 | 0% | 0% | |
| 26 | 0% | 0% | Last Result |
Samfylkingin – Vinstrihreyfingin – grænt framboð – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 14 | 0.1% | 100% | |
| 15 | 2% | 99.9% | |
| 16 | 16% | 98% | |
| 17 | 34% | 82% | Median |
| 18 | 28% | 49% | |
| 19 | 13% | 21% | |
| 20 | 6% | 8% | |
| 21 | 2% | 2% | |
| 22 | 0.6% | 0.6% | |
| 23 | 0% | 0% | |
| 24 | 0% | 0% | |
| 25 | 0% | 0% | Last Result |
Framsóknarflokkurinn – Vinstrihreyfingin – grænt framboð

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 14 | 0.7% | 100% | |
| 15 | 4% | 99.3% | |
| 16 | 19% | 95% | |
| 17 | 28% | 76% | Median |
| 18 | 38% | 48% | |
| 19 | 7% | 11% | Last Result |
| 20 | 4% | 4% | |
| 21 | 0.1% | 0.1% | |
| 22 | 0% | 0% |
Samfylkingin – Vinstrihreyfingin – grænt framboð

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 13 | 0.4% | 100% | |
| 14 | 3% | 99.6% | |
| 15 | 23% | 97% | |
| 16 | 36% | 74% | Median |
| 17 | 26% | 38% | |
| 18 | 10% | 12% | Last Result |
| 19 | 2% | 2% | |
| 20 | 0.1% | 0.1% | |
| 21 | 0% | 0% |
Vinstrihreyfingin – grænt framboð – Píratar

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 12 | 0.2% | 100% | |
| 13 | 3% | 99.8% | |
| 14 | 14% | 97% | |
| 15 | 36% | 83% | Median |
| 16 | 32% | 47% | |
| 17 | 12% | 15% | Last Result |
| 18 | 3% | 3% | |
| 19 | 0.2% | 0.2% | |
| 20 | 0% | 0% |
Sjálfstæðisflokkurinn – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 12 | 0.7% | 100% | |
| 13 | 10% | 99.2% | |
| 14 | 29% | 89% | Median |
| 15 | 29% | 60% | |
| 16 | 24% | 31% | |
| 17 | 6% | 8% | |
| 18 | 1.3% | 2% | |
| 19 | 0.3% | 0.3% | |
| 20 | 0% | 0% | |
| 21 | 0% | 0% | |
| 22 | 0% | 0% | |
| 23 | 0% | 0% | Last Result |
Vinstrihreyfingin – grænt framboð – Miðflokkurinn

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 7 | 3% | 100% | |
| 8 | 24% | 97% | |
| 9 | 33% | 73% | Median |
| 10 | 24% | 40% | |
| 11 | 11% | 16% | |
| 12 | 3% | 5% | |
| 13 | 2% | 2% | |
| 14 | 0% | 0% | |
| 15 | 0% | 0% | |
| 16 | 0% | 0% | |
| 17 | 0% | 0% | |
| 18 | 0% | 0% | Last Result |
Technical Information
Opinion Poll
- Polling firm: MMR
- Commissioner(s): Morgunblaðið
- Fieldwork period: 15–17 September 2021
Calculations
- Sample size: 1257
- Simulations done: 1,048,576
- Error estimate: 1.55%