Key points at a glance
This page is written for residents of Onex, in the canton of Geneva, who want to understand, compare and optimise their health insurance. Basic health insurance (KVG/LAMal) is compulsory, and by law its benefits are identical at every insurer: in Onex, the real way to save is choosing the insurer, the deductible and the insurance model — not cutting cover.
What sets your premium is your FOPH premium region (Onex belongs to region 0 in the canton of Geneva) — your state of health is irrelevant, because basic insurance carries an obligation to accept every applicant. Onex has roughly 18’977 residents — and every insured person is free to choose their own insurer. Further down are the actual 2026 premiums for Onex, practical tips and a free, no-obligation comparison. Neighbouring municipalities have their own pages too: Confignon (1 km), Lancy (1 km), Vernier (2 km).
Onex at a glance: your local context
Onex, a municipality of roughly 18’977 residents in the canton of Geneva, has its own profile when it comes to health insurance. Onex lies in premium region 0 of the canton of Geneva (FOPH classification). Because even the next municipality may belong to a different region, premiums for the same cover can differ significantly — what matters is always the exact municipality, not the cantonal average.
- Population: roughly 18’977
- Canton: Geneva
- Basic-insurance premium region (FOPH/OFSP): region 0
- Postal code (NPA): 1213
- Federal municipality number (BFS): 6631
Health insurance and supplementary cover around Onex: compare neighbouring municipalities
Around Onex, every neighbouring municipality has its own page on the topic — useful if a move is coming up or if you are weighing several locations:
- Health insurance and supplementary cover in Confignon — 1.3 km away
- Health insurance and supplementary cover in Lancy — 1.4 km away
- Health insurance and supplementary cover in Vernier — 1.9 km away
- Health insurance and supplementary cover in Plan-les-Ouates — 2.3 km away
- Health insurance and supplementary cover in Bernex — 2.5 km away
- Health insurance and supplementary cover in Perly-Certoux — 3.1 km away
- Health insurance and supplementary cover in Carouge — 3.1 km away
- Health insurance and supplementary cover in Genève — 4.3 km away
- Health insurance and supplementary cover in Troinex — 4.3 km away
- Health insurance and supplementary cover in Aire-la-Ville — 4.5 km away
Health insurance premiums 2026 in Onex: the real numbers
The range in Onex is striking: for adults (deductible 300 CHF), the 2026 monthly premium runs from 604 to 914 francs — for basic insurance whose benefits the law fixes identically for every insurer. Comparing therefore saves up to 3’714 francs a year, without giving anything up. The lowest adult premium there comes with the "family-doctor (Hausarzt)" model.
| Profile | Deductible 300 CHF | Deductible 2’500 CHF |
|---|---|---|
| Adults (26 and over) | 604 – 914 CHF | from 476 CHF |
| Young adults (19–25) | 445 – 718 CHF | from 317 CHF |
| Children (0–18) | 52 – 203 CHF | — |
Our comparison tool does this work for you: the 66 insurers available for Onex are ranked by your profile (age, deductible, model) from the lowest to the highest rate — your cover stays unchanged.
Basic insurance in Onex: choosing insurer, deductible and model
Three decisions drive your premium in Onex. First, the insurer: with legally identical benefits, it is the biggest lever for saving. Second, the deductible (300 to 2’500 CHF a year): if you rarely see a doctor and hold a reserve, the high deductible is usually the better deal; with regular treatment, choose the low one. For comparison: with a 2’500 CHF deductible, the adult premium in Onex starts as low as 476 francs a month. Third, the model: family-doctor, HMO or telemedicine models cut the premium significantly compared with free choice of doctor.
Important for switching: your cancellation of basic insurance must REACH your current insurer by 30 November at the latest (the date of receipt counts, so send it by registered post) for the switch to take effect on 1 January. Also check whether you qualify for premium subsidies in the canton of Geneva — many households leave this reduction unused.
Checklist for Onex
- Compare every autumn: insurers adjust their rates each year.
- Match the deductible to your own health profile (work out 300 vs. 2’500 CHF).
- Consider an alternative model (family-doctor, HMO, telemedicine) — same basic benefits, lower premium.
- Check your entitlement to premium subsidies in the canton of Geneva.
Free premium comparison for Onex →
How we work for Onex
Three steps, one goal: first we capture your specific profile (age, deductible, model, accident); then we sort the insurers in your premium region (FOPH 2026) by rate; finally we check the premium subsidy of the canton of Geneva. Your benefits stay untouched — by law they are the same at every insurer — only the bill goes down. In Onex this difference is measurable: 604–914 francs a month for adults, i.e. up to 3’714 francs a year across 66 insurers — for identical cover. Repeat the comparison each autumn before 30 November: free and with no commitment.
FAQ — insurance in Onex (practical guidance, not legal advice)
How much is the 2026 health insurance premium in Onex?
In Onex (postal code 1213), the 2026 adult basic-insurance premium ranges from 604 to 914 francs a month depending on the insurer (deductible 300), from 445 francs for young adults and from 52 francs for children. For identical cover, the difference reaches up to 3’714 francs a year (FOPH premium region 0 of the canton of Geneva). Source: FOPH/OFSP, approved premiums 2026.
Do the neighbouring municipalities of Onex have the same premiums?
Not necessarily. Onex and nearby municipalities such as Confignon (1 km), Lancy (1 km) can belong to different FOPH premium regions: for identical cover, the premium can vary from one municipality to the next. Always compare for your exact municipality of residence.
Does this page replace personal advice in Onex?
No. It explains the insurance and tax concepts for residents of Onex (canton of Geneva). Your decisions should rest on your own documents — and, where needed, on a regulated professional.
Can I compare "Health insurance and supplementary cover" in Onex with no obligation?
Yes: we first clarify your needs, then — only if you wish — targeted comparisons and quotes for Onex follow. The comparison is free, and no offer is binding.
How is the data from the form handled?
Transmission is encrypted and only takes place after your explicit consent. Details on purpose, recipients and storage duration are in our privacy policy.
Important notes
Assur-IA's content is maintained carefully, but it can change with legislation, case law and the product range. It constitutes neither a binding offer nor a personal recommendation. Rates, premiums, deductibles and deductions depend on your profile and the reference date.
Official sources
Our figures and information rely on the official publications of the Swiss Confederation.