Apartments & Houses for sale in Onex
11 results
11 results
More listings in the Onex area
Property market in Onex
The vacancy rate is 0.14%, 55% below the cantonal average (0.31 %). The municipal tax multiplier (Steuerfuss) is 50.5% (2026), 15% above the average of the canton's municipalities (43.8 %). A single person without children on a gross wage of CHF 100'000 pays CHF 14'174 a year in canton, municipality and personal tax (tax year 2026, without church, federal and wealth tax). On the mean of the municipalities weighted by residents it is CHF 13'648 in the canton and CHF 12'251 in Switzerland. Median taxable income of all taxpayers is CHF 44'150 (tax period 2022). Onex has 19'101 residents (2025).
Sources: Swiss Federal Statistical Office (FSO), Swiss Federal Tax Administration (FTA).
Frequently asked questions
How many apartments & houses are available to buy in Onex?
11 apartments & houses are currently listed to buy in Onex on Homematch. The selection updates throughout the day as agencies publish new listings.
What are asking prices in Onex?
Flats and houses in Onex are offered for sale at a median of CHF 13'940 per m² of living space, the middle half between CHF 12'389 and CHF 14'674 (10 listings, as of 1 Nov 2026). These are asking prices from listings on Swiss portals, not prices paid and not a valuation.
Which canton is Onex in?
Onex is located in the canton of Geneva.
What is the population of Onex?
Onex has approximately 19'101 residents.
What is the municipal tax multiplier (Steuerfuss) in Onex?
The municipal tax multiplier (Steuerfuss) in Onex is 50.5% of the cantonal base tax (tax year 2026). Note: this is a multiplier of the cantonal income tax, not an effective tax rate, and it can only be compared within the same canton.
How much income tax is paid in Onex?
A single person without children on a gross wage of CHF 100'000 pays CHF 14'174 a year in canton, municipality and personal tax in Onex (tax year 2026, without church, federal and wealth tax). The amount holds for exactly this household and income and, unlike the tax multiplier, compares across cantons.