PS
Voting Intentions
Last result: 30.9% (General Election of 25 May 2014)
Confidence Intervals
| Period | Polling firm/Commissioner(s) | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval | 
|---|---|---|---|---|---|---|
| N/A | Poll Average | 26.6% | 23.6–29.7% | 23.0–30.4% | 22.5–30.9% | 21.7–31.9% | 
| 6–14 May 2019 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      28.5% | 26.7–30.4% | 26.2–30.9% | 25.8–31.4% | 25.0–32.3% | 
| 25 March–14 April 2019 | TNS  De Standaard, La Libre Belgique, RTBf and VRT  | 
      24.7% | 23.0–26.5% | 22.5–27.0% | 22.1–27.5% | 21.3–28.3% | 
| 5–11 February 2019 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      24.3% | 22.6–26.1% | 22.2–26.6% | 21.7–27.1% | 21.0–28.0% | 
| 19 November–8 December 2018 | TNS  De Standaard, La Libre Belgique, RTBf and VRT  | 
      25.4% | 23.7–27.2% | 23.2–27.7% | 22.8–28.2% | 22.0–29.1% | 
| 27 November–3 December 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      24.9% | 23.2–26.7% | 22.8–27.3% | 22.3–27.7% | 21.6–28.6% | 
| 20–27 September 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      23.6% | 21.9–25.4% | 21.5–25.9% | 21.1–26.3% | 20.3–27.2% | 
| 29 May–6 June 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      23.4% | 21.7–25.2% | 21.3–25.7% | 20.9–26.1% | 20.1–27.0% | 
| 26 February–17 March 2018 | TNS  De Standaard–VRT–RTBf–La Libre Belgique  | 
      23.2% | 21.5–24.9% | 21.0–25.4% | 20.7–25.8% | 19.9–26.7% | 
| 27 February–6 March 2018 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      23.9% | 22.2–25.7% | 21.7–26.2% | 21.3–26.7% | 20.6–27.6% | 
| 27 November–4 December 2017 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      19.5% | 18.0–21.2% | 17.5–21.7% | 17.2–22.1% | 16.5–22.9% | 
| 11 September–5 October 2017 | TNS  De Standaard–VRT–RTBf–La Libre Belgique  | 
      21.5% | 19.9–23.1% | 19.5–23.6% | 19.1–24.0% | 18.4–24.8% | 
| 25 August–3 September 2017 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      20.7% | 19.1–22.5% | 18.7–23.0% | 18.3–23.4% | 17.5–24.3% | 
| 23–27 June 2017 | Dedicated  MR  | 
      16.0% | 14.3–18.0% | 13.7–18.6% | 13.3–19.1% | 12.5–20.1% | 
| 16–20 March 2017 | Dedicated  RTBf–La Libre Belgique  | 
      21.4% | 19.4–23.5% | 18.9–24.1% | 18.4–24.6% | 17.5–25.7% | 
| 16–17 February 2017 | iVox  Sudpresse  | 
      21.3% | 19.7–23.0% | 19.2–23.5% | 18.9–23.9% | 18.1–24.8% | 
| 10–17 January 2017 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      23.6% | 21.9–25.5% | 21.4–26.0% | 21.0–26.4% | 20.3–27.3% | 
| 28–24 November 2016 | Dedicated  RTBf–La Libre Belgique  | 
      24.1% | 22.1–26.4% | 21.5–27.0% | 21.0–27.5% | 20.1–28.6% | 
| 19–25 September 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      24.7% | 23.0–26.6% | 22.5–27.1% | 22.1–27.5% | 21.3–28.4% | 
| 2–6 September 2016 | Dedicated  RTBf–La Libre Belgique  | 
      25.1% | 23.0–27.3% | 22.5–27.9% | 22.0–28.5% | 21.0–29.6% | 
| 6–12 May 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      25.8% | 24.1–27.7% | 23.6–28.2% | 23.2–28.6% | 22.4–29.5% | 
| 31 March–4 April 2016 | Dedicated  La Libre Belgique–RTBf  | 
      26.4% | 24.6–28.3% | 24.1–28.8% | 23.7–29.2% | 22.9–30.2% | 
| 15–20 January 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      26.7% | 25.0–28.5% | 24.5–29.0% | 24.1–29.5% | 23.3–30.4% | 
| 3–7 December 2015 | Dedicated  La Libre Belgique–RTBf  | 
      27.3% | 25.4–29.2% | 24.9–29.8% | 24.4–30.2% | 23.6–31.2% | 
| 28 September–4 October 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      26.0% | 24.2–27.8% | 23.8–28.3% | 23.4–28.7% | 22.6–29.6% | 
| 9–14 September 2015 | Dedicated  La Libre Belgique–RTBf  | 
      29.7% | 27.5–32.1% | 26.8–32.8% | 26.3–33.4% | 25.3–34.5% | 
| 12–18 May 2015 | Dedicated  La Libre Belgique–RTBf  | 
      29.7% | 27.5–32.0% | 26.9–32.7% | 26.4–33.3% | 25.4–34.4% | 
| 20–24 April 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      25.8% | 24.1–27.7% | 23.6–28.3% | 23.2–28.7% | 22.3–29.6% | 
| 5–9 March 2015 | Dedicated  La Libre Belgique–RTBf  | 
      28.8% | 26.6–31.1% | 26.0–31.7% | 25.5–32.3% | 24.5–33.4% | 
| 23–28 January 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      27.4% | 25.7–29.3% | 25.2–29.8% | 24.8–30.2% | 24.0–31.1% | 
| 5–11 January 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      30.1% | 28.3–32.0% | 27.8–32.5% | 27.4–33.0% | 26.6–33.9% | 
| 27 November–1 December 2014 | Dedicated  La Libre Belgique–RTBf  | 
      30.1% | 27.8–32.4% | 27.2–33.1% | 26.7–33.7% | 25.6–34.9% | 
| 5–9 September 2014 | Dedicated  RTBf–La Libre Belgique  | 
      31.1% | 28.9–33.4% | 28.2–34.1% | 27.7–34.7% | 26.6–35.8% | 
Probability Mass Function
The following table shows the probability mass function per percentage block of voting intentions for the poll average for PS.
| Voting Intentions | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 19.5–20.5% | 0% | 100% | |
| 20.5–21.5% | 0.4% | 100% | |
| 21.5–22.5% | 2% | 99.6% | |
| 22.5–23.5% | 7% | 97% | |
| 23.5–24.5% | 13% | 91% | |
| 24.5–25.5% | 14% | 78% | |
| 25.5–26.5% | 12% | 63% | |
| 26.5–27.5% | 12% | 51% | Median | 
| 27.5–28.5% | 14% | 39% | |
| 28.5–29.5% | 13% | 25% | |
| 29.5–30.5% | 8% | 12% | |
| 30.5–31.5% | 3% | 4% | Last Result | 
| 31.5–32.5% | 0.8% | 0.9% | |
| 32.5–33.5% | 0.1% | 0.1% | |
| 33.5–34.5% | 0% | 0% | 
Seats
Last result: 30 seats (General Election of 25 May 2014)
Confidence Intervals
| Period | Polling firm/Commissioner(s) | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval | 
|---|---|---|---|---|---|---|
| N/A | Poll Average | 23 | 21–26 | 20–28 | 19–28 | 18–29 | 
| 6–14 May 2019 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      25 | 23–28 | 23–28 | 22–29 | 21–29 | 
| 25 March–14 April 2019 | TNS  De Standaard, La Libre Belgique, RTBf and VRT  | 
      21 | 20–23 | 19–24 | 19–25 | 18–26 | 
| 5–11 February 2019 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      22 | 21–24 | 20–25 | 19–25 | 19–27 | 
| 19 November–8 December 2018 | TNS  De Standaard, La Libre Belgique, RTBf and VRT  | 
      21 | 20–24 | 19–24 | 19–25 | 18–27 | 
| 27 November–3 December 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      21 | 21–24 | 20–24 | 19–25 | 19–26 | 
| 20–27 September 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      21 | 19–23 | 19–23 | 18–24 | 17–25 | 
| 29 May–6 June 2018 | Ipsos  Het Laatste Nieuws, Le Soir, RTL TVi and VTM  | 
      21 | 19–23 | 19–24 | 18–24 | 17–25 | 
| 26 February–17 March 2018 | TNS  De Standaard–VRT–RTBf–La Libre Belgique  | 
      21 | 18–22 | 18–22 | 18–23 | 17–23 | 
| 27 February–6 March 2018 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      21 | 19–23 | 19–23 | 18–24 | 18–25 | 
| 27 November–4 December 2017 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      17 | 16–19 | 15–20 | 15–20 | 15–21 | 
| 11 September–5 October 2017 | TNS  De Standaard–VRT–RTBf–La Libre Belgique  | 
      19 | 17–21 | 17–21 | 17–21 | 16–22 | 
| 25 August–3 September 2017 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      18 | 17–21 | 16–21 | 16–21 | 15–22 | 
| 23–27 June 2017 | Dedicated  MR  | 
      15 | 12–16 | 12–16 | 11–16 | 9–18 | 
| 16–20 March 2017 | Dedicated  RTBf–La Libre Belgique  | 
      19 | 18–20 | 17–21 | 16–21 | 16–23 | 
| 16–17 February 2017 | iVox  Sudpresse  | 
      18 | 17–20 | 16–21 | 16–21 | 15–21 | 
| 10–17 January 2017 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      21 | 20–24 | 19–24 | 18–25 | 18–26 | 
| 28–24 November 2016 | Dedicated  RTBf–La Libre Belgique  | 
      21 | 19–23 | 19–24 | 19–25 | 17–27 | 
| 19–25 September 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      23 | 21–25 | 20–26 | 19–27 | 19–27 | 
| 2–6 September 2016 | Dedicated  RTBf–La Libre Belgique  | 
      22 | 21–25 | 21–27 | 21–27 | 19–27 | 
| 6–12 May 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      24 | 22–26 | 21–27 | 21–28 | 21–29 | 
| 31 March–4 April 2016 | Dedicated  La Libre Belgique–RTBf  | 
      24 | 21–26 | 21–26 | 21–27 | 20–28 | 
| 15–20 January 2016 | Ipsos  RTL TVi–Le Soir–VTM–Het Laatste Nieuws  | 
      26 | 24–28 | 23–29 | 23–29 | 22–30 | 
| 3–7 December 2015 | Dedicated  La Libre Belgique–RTBf  | 
      24 | 22–27 | 22–27 | 21–28 | 21–29 | 
| 28 September–4 October 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      25 | 24–27 | 23–28 | 22–28 | 21–29 | 
| 9–14 September 2015 | Dedicated  La Libre Belgique–RTBf  | 
      27 | 25–29 | 24–30 | 24–31 | 22–31 | 
| 12–18 May 2015 | Dedicated  La Libre Belgique–RTBf  | 
      27 | 25–29 | 24–30 | 23–31 | 22–31 | 
| 20–24 April 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      24 | 22–25 | 21–26 | 21–27 | 21–28 | 
| 5–9 March 2015 | Dedicated  La Libre Belgique–RTBf  | 
      27 | 24–29 | 23–30 | 23–30 | 22–31 | 
| 23–28 January 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      25 | 23–28 | 23–28 | 23–28 | 22–29 | 
| 5–11 January 2015 | Ipsos  Het Laatste Nieuws–Le Soir–RTL Tvi–VTM  | 
      28 | 27–31 | 26–31 | 26–31 | 24–32 | 
| 27 November–1 December 2014 | Dedicated  La Libre Belgique–RTBf  | 
      28 | 26–31 | 25–31 | 24–32 | 23–33 | 
| 5–9 September 2014 | Dedicated  RTBf–La Libre Belgique  | 
      28 | 25–31 | 24–31 | 23–31 | 23–34 | 
Probability Mass Function

The following table shows the probability mass function per seat for the poll average for PS.
| Number of Seats | Probability | Accumulated | Special Marks | 
|---|---|---|---|
| 18 | 1.0% | 100% | |
| 19 | 2% | 99.0% | |
| 20 | 4% | 97% | |
| 21 | 19% | 93% | |
| 22 | 13% | 74% | |
| 23 | 18% | 61% | Median | 
| 24 | 11% | 43% | |
| 25 | 16% | 32% | |
| 26 | 6% | 15% | |
| 27 | 4% | 9% | |
| 28 | 4% | 5% | |
| 29 | 1.3% | 1.4% | |
| 30 | 0.2% | 0.2% | Last Result | 
| 31 | 0% | 0% |