Opinion polls September 2025 – where the parties stand

In September 2025, 3 opinion polls were published. Polara gathers every survey in one place, pollster by pollster, with a weighted monthly average per party and bloc totals.

Largest change since the previous polling month (August 2025): Sverigedemokraterna, +0.7 percentage points.

Monthly average per party

A weighted aggregate of the month’s opinion polls — larger samples weigh more (√n). Change is measured against the August 2025 average.

№	Party	Monthly avg	Change
01	S Socialdemokraterna	34.5%	+0.6
02	SD Sverigedemokraterna	21.3%	+0.7
03	M Moderaterna	17.9%	+0.1
04	V Vänsterpartiet	6.8%	-0.4
05	MP Miljöpartiet	5.8%	-0.1
06	C Centerpartiet	4.7%	-0.4
07	KD Kristdemokraterna	4.0%	-0.1
08	L Liberalerna	2.7%	-0.2

Movers of the month

Largest gains

Sverigedemokraterna +0.7
Socialdemokraterna +0.6
Moderaterna +0.1

Largest drops

Vänsterpartiet -0.4
Centerpartiet -0.4
Liberalerna -0.2

Bloc totals

Sum of parties polling above the 4% threshold in the month’s average.

Left bloc

47.1%

Centre

4.7%

Right bloc

43.2%

All polls published in September 2025

Date	Pollster	Sample	S	SD	M	V	MP	C	KD	L
19 Sept 2025	Novus	2,197	34.6	23.9	17.0	6.6	5.2	4.6	3.0	3.1
22 Sept 2025	Verian (Sifo)	3,227	34.8	20.1	17.9	7.5	5.8	4.7	4.2	2.6
22 Sept 2025	Demoskop	2,099	34.1	20.2	18.7	6.0	6.5	4.8	4.9	2.3

Aggregated from Wikipedia (CC BY-SA 4.0). Sample sizes as reported by each pollster.

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