INSA poll of 18 September 2026 for the Berlin state election
- Commissioned by
- Volt Berlin
- Fieldwork period
- 10 to 16 Sep 2026
- Respondents
- 1,000
- Method
- Online
- Linke21.0%+1.0
- CDU20.0%±0
- AfD18.0%±0
- Grüne15.0%-1.0
- SPD12.0%±0
- BSW5.0%±0
- Others9.0%+3.0
Dashed line: electoral threshold of 5%. Change compared with the previous INSA poll of 14 Sep 2026.
In this poll INSA has Linke ahead on 21.0%, followed by CDU on 20.0%. 1,000 people were surveyed from 10 to 16 Sep 2026, method Online, commissioned by Volt Berlin.
Compared with the previous INSA poll of 14 Sep 2026, Linke gains 1.0 points, Grüne loses 1.0 points.
All parties are within 1.5 points of the average of the other pollsters.
Deviation from the average of the other pollsters
Rolling 120-day average of the other pollsters on 18 Sep 2026. Positive: this poll is above it.
- BSW +1.0average 4.0
- Grüne -0.8average 15.8
- CDU +0.5average 19.5
- SPD -0.3average 12.3
- Linke ±0average 21.0
- AfD ±0average 18.0
Seat projection from this poll
130 seats by Hare/Niemeyer, five per cent threshold, waived for parties winning a constituency.
- Linke30
- CDU29
- AfD26
- Grüne21
- SPD17
- BSW7
- Linke + CDU + AfD85 of 130
- Linke + CDU + Grüne80 of 130
- Linke + AfD + Grüne77 of 130
- Linke + CDU + SPD76 of 130
- CDU + AfD + Grüne76 of 130
- Linke + AfD + SPD73 of 130
- CDU + AfD + SPD72 of 130
- Linke + Grüne + SPD68 of 130
- CDU + Grüne + SPD67 of 130
- Linke + CDU + BSW66 of 130
More polls
Data from dawum.de (ODbL), analysis by wahlergebnisse.io. Individual polls carry a margin of error of roughly two to three points for the larger parties.