Municipality · canton of Genève
Onex
Municipality number 6631 in the federal register.
- residents, 2025
- 19’101
- km² of land
- 2.81
- residents per km²
- 6’798
- Canton
- Genève
- District
- None (the canton has no districts here)
- Residents 2025
- 19’101+1.0% on 2024
- Foreign residents
- 37.4%7’136 people
- Private households 2025
- 7’831
- Land area
- 2.81 km²without lakes
- Building insurance
- Private insurers cover buildings here.The natural-hazard part is the same at every insurer: CHF 0.31 per CHF 1’000 (FINMA, since 2023). The fire part is each insurer’s own price; none is published.FINMA-Verfügung vom 25. Januar 2022, BBl 2022 264, read 12.10.2026
- Mortgage lenders
- 9 of 10lenders on MEconomy with no stated limit that excludes this canton; Glarner Kantonalbank states it does not lend in Genève
- Postcodes
- 1212, 1213
What a household pays here
Health insurance and electricity for your household in Onex, against where you live today.
Sources: population and foreign residents on 31.12.2025 and private households 2025, Federal Statistical Office (STATPOP), on today’s municipal boundaries; municipalities, districts and land area without lakes, swisstopo swissTLMRegio; postcodes, swisstopo’s official locality register. Updated each September.