About Thônex
Thônex is a municipality of the Canton of Geneva, Switzerland. It is situated in the east of the canton and shares a border with the French town of Ambilly.
- Canton
- Geneva
- Area
- 3.8 km²
Population
16'809residents
Median taxable income
CHF 66'885
Vacancy
0.28%
Foreign residents
37.7%
Dwellings
7'500
Jobs (FTE)
5'862
Tax multiplier
44%
Land use across the commune
Every 100 × 100 m of Thônex, coloured by how it's used. Drawn from the BFS Arealstatistik 2025 release — the most recent nationwide snapshot.
Source BFS Arealstatistik
Loading statistics …
Election Results
SVP led the 2023 National Council election with 18.4%, ahead of FDP at 17.2%.
Source BFS
SVP18.4%+1.8 pp
FDP17.2%−3.7 pp
SP15.7%+3.4 pp
MCR
12.9%+7.7 pp
Grüne12.5%−9.1 pp
Mitte9.8%
GLP7.4%+1.5 pp
Others
2.0%
2023 vs 2019
Climate data
Annual mean 11.0°C with 946 mm of rain. Warmest in July (20.6°C), coldest in January (2.1°C). Station: Genève / Cointrin, 411 m.
Source MeteoSchweiz
11.0°C
Annual mean
Mean 11.0°C
Rain 946 mm
Sun ≈157 days
Genève / Cointrin · 411 m.a.s.l. · 1991–2020 normals
Warming trend
Mean annual temperature at Genève / Cointrin has risen by +2.1°C between the first 30 observed years (1753–1782) and the most recent (1996–2025).
Source MeteoSchweiz NBCN
+2.1°C
mean 1996–2025 vs. 1753–1782
Genève / Cointrin · 411 m.a.s.l. · 1753–2025
