About Oensingen
Oensingen is a municipality in the district of Gäu in the canton of Solothurn in Switzerland.
- Canton
- Solothurn
- Area
- 12.1 km²
Population
6'817residents
Median taxable income
CHF 65'380
Vacancy
1.20%
Foreign residents
40.3%
Dwellings
3'250
Jobs (FTE)
5'350
Tax multiplier
116%
Land use across the commune
Every 100 × 100 m of Oensingen, coloured by how it's used. Drawn from the BFS Arealstatistik 2025 release — the most recent nationwide snapshot.
Source BFS Arealstatistik
Loading statistics …
Jobs & economy
5'350 full-time-equivalent jobs across 442 businesses — services make up 63% of employment, industry 36% (2018).
Source BFS STATENT
5'350FTE total
Primary1.5%
Secondary36.0%
Tertiary62.5%
Land use
24% built-up, 38% agricultural, 37% forest. Measured across 1'207 hectares (2018).
Source BFS Arealstatistik
Settlement23.8%
Agriculture38.5%
Forest37.7%
Water0.0%
Election Results
SVP led the 2023 National Council election with 34.1%, ahead of Mitte at 26.0%.
Source BFS
SVP34.1%−0.4 pp
Mitte26.0%
FDP14.6%−6.0 pp
SP12.9%−1.7 pp
Grüne5.6%−0.5 pp
GLP4.5%−1.2 pp
EVP0.8%+0.4 pp
2023 vs 2019
Primary / second-home mix
93.1% of dwellings are primary residences; 6.9% are second homes (2026).
Source BFS
Primary residences93.1%
Second homes6.9%
Climate data
Annual mean 9.6°C with 1'107 mm of rain. Warmest in July (19.0°C), coldest in January (0.7°C). Station: Wynau, 422 m.
Source MeteoSchweiz
9.6°C
Annual mean
Mean 9.6°C
Rain 1107 mm
Sun ≈133 days
Wynau · 422 m.a.s.l. · 1991–2020 normals
Warming trend
Mean annual temperature at Basel / Binningen has risen by +2.4°C between the first 30 observed years (1755–1784) and the most recent (1996–2025).
Source MeteoSchweiz NBCN
+2.4°C
mean 1996–2025 vs. 1755–1784
Basel / Binningen · 316 m.a.s.l. · 1755–2025
