Wahlergebnissede
Pollster and election

INSA on the Berlin state election

36 polls since 14 April 2018, the latest from 18 September 2026 for Volt Berlin. Against the current average of all pollsters, INSA has BSW +0.8 and Grüne -0.6. House effect since 18 Sep 2024: SPD +1.8, Linke -1.5, Grüne -1.1.

  • 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 INSA poll of 14 Sep 2026.

This poll in detail

Trend

All INSA figures for the Berlin state election

01020302023202420252026LinkeCDUAfDGrüneSPDBSW
Dots are individual polls, lines the rolling average over 120 days. Period 16 Nov 2022 to 18 Sep 2026. Tap the tiles to hide parties.
Accuracy

INSA before the last elections

Deviation of the final poll before the election from the official result, mean absolute deviation per party.

  • Election 20 Sep 2026 (poll 18 Sep 2026)1.5 ptsbiggest miss Linke -4.7
  • Election 12 Feb 2023 (poll 9 Feb 2023)1.1 ptsbiggest miss CDU -3.2
  • Election 26 Sep 2021 (poll 24 Sep 2021)1.8 ptsbiggest miss AfD +3.0
Archive

All 36 polls

INSA polls for the Berlin state election
PollsterPublishedLinkeCDUAfDGrüneSPDBSWOthers
INSA18 Sep 2026212018151259
INSA14 Sep 2026202018161256
INSA4 Sep 2026192018151537
INSA14 Aug 2026192017161537
INSA23 Jul 2026181819161348
INSA15 May 2026152018151648
INSA14 Apr 2026152117151748
INSA25 Feb 2026152217151647
INSA14 Jan 2026172216141747
INSA28 Oct 2025172315141656
INSA21 May 2025132413151778
INSA13 Jul 2024726121518126
INSA30 Jan 20241029131716–11
INSA27 Sep 20231026141817–10
INSA5 Apr 2023113091818–9
INSA9 Feb 20231225101819–10
INSA21 Dec 20221221102021–10
INSA16 Nov 20221221102020–10
INSA12 Jul 2022122082120–12
INSA19 Jun 2022122182021–10
INSA14 Dec 2021151992022–8
INSA24 Sep 20211415111723–6
INSA25 Aug 20211516121822–5
INSA24 Jun 20211318122218–5
INSA18 May 20211316122520–2
INSA23 Apr 20211416122519–4
INSA18 Dec 20201622121818–7
INSA12 Oct 20201621122018–7
INSA15 Jul 20201821121916–9
INSA2 Jan 20201918132315–5
INSA18 Sep 20191817142415–6
INSA9 Apr 20191919121916–6
INSA18 Dec 20181618142116–7
INSA7 Nov 20181716152216–7
INSA18 Jul 20181718141817–5
INSA14 Apr 20181919131719–3

Other elections covered by this pollster

Election tickerNext electionSaarland207 daysLatest pollForsa, North Rhine-Westphalia23 Sep 2026CDU 29AfD 22Grüne 18Biggest moveSPD, Rhineland-Palatinate▼ −8,3Leading nationallyAfDfor 159 daysRun-offsLower Saxony local elections4 daysLatest resultBerlin state election 2026Linke 25.7%, preliminary

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