Current election polls and polling data from Sotomo

Latest voting intention survey by Sotomo for Switzerland

In the latest voting intention survey for the election in Switzerland conducted by Sotomo, the parties received the following results: SVP/UDC 30.4%, SP/PS 18.8%, DM/LC 13.6%, FDP/PLR 13.3%, G/LV 10.3%, GLP/PVL 6.1% and EVP/PEV 1.5%. The voting intention survey interviewed a total of 32147 people during the period 11.09.2025 - 11.09.2025.
32147 participants
25.08.2025 - 11.09.2025
Sotomo
Development since the last election on 22.10.2023
SVP
+2.5
SP
+0.5
DM
-0.5
FDP
-1.0
G
+0.5
GLP
-1.5
EVP
-0.5
SVP
30.4
+0.5
SP
18.8
+1.0
DM
13.6
-0.5
FDP
13.3
-1.0
G
10.3
+0.8
GLP
6.1
-0.5
EVP
1.5
-0.5
Others
6.0
+0.2

Seats in parliament

200
Majority requires 101 seats
SP
40
20%
G
22
11%
GLP
13
6.5%
EVP
3
1.5%
FDP
28
14%
DM
29
14.5%
SVP
65
32.5%
SVP/UDC + DM/LC + FDP/PLR
61.0%
SP/PS + DM/LC + FDP/PLR + G/LV
59.5%
SP/PS + DM/LC + FDP/PLR + GLP/PVL
55.0%
SP/PS + DM/LC + G/LV + GLP/PVL
52.0%
SP/PS + FDP/PLR + G/LV + GLP/PVL
51.5%
SP/PS + DM/LC + FDP/PLR + EVP/PEV
50.0%
92

PolitPro Score

Sotomo achieves a score of 92/100 in the PolitPro Score.

What is the PolitPro Score?

The PolitPro Score evaluates the reliability of polling institutes based on their accuracy in elections and neutrality toward political parties. Significant biases in favor of or against parties compared to election trends result in deductions. The maximum score is 100.

Rating of parties

Comparison of historical poll results with overall election trends across all institutes (in %)

Lower
Similar
Higher
DM
0
100
0
EVP
0
100
0
FDP
0
100
0
G
0
100
0
GLP
0
100
0
SP
0
100
0
SVP
6
94
0

What are significant differences?

The PolitPro election trend, which calculates a time-weighted average value of current election polls, serves as a comparison value. A poll value is considered higher/lower if it is more than one percentage point higher/lower than the election trend. The overview shows all parties for which there is a deviation in a particular direction in at least 30% of the institute's election polls.

Accuracy in elections

0.6

Average deviation

On average, party poll results in Sotomo pre-election polls deviate from the actual result by 0.6 percentage points.

Average Deviation of Pre-Election Polls from the Results of Recent Elections

Deviation Election Rank
0.25
 Parliamentary Election in Switzerland 2023 1/1
1.17
 Parliamentary Election in Switzerland 2019 1/2
0.49
 Parliamentary Election in Switzerland 2015 2/2

How is an institute’s accuracy calculated?

The accuracy indicates how closely pre-election polls matched the actual election results.
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