Thônex: population and statistics
Thônex has a population of 16,940 (2025) across 3.8 km², or 4,435 people per km². It ranks 77 of 2,115 municipalities by population. Its population is growing: +21.4% between 2015 and 2025.
- 16,940 residents
- 3.8 km²
- 4,435 people/km²
- 425 m
Key points
Among the 45 municipalities in Geneva, Thônex ranks No. 7 by population.
Dwellings in buildings built before 1946: 5.1% in Thônex, compared with an average of 20.4% in Geneva and 22.4% nationally.
Wood heating systems: 1.2% in Thônex, compared with an average of 1.5% in Geneva and 9.3% nationally.
A 1 kWp solar panel tilted at 38° generates about 1,293 kWh a year here.
Thônex in numbers
Where is Thônex?
Population of Thônex over time
Thônex had 13,955 residents in 2015 and 16,940 in 2025.
| Year | Population |
|---|---|
| 2020 | 14,573 |
| 2021 | 14,815 |
| 2022 | 16,115 |
| 2023 | 16,690 |
| 2024 | 16,809 |
| 2025 | 16,940 |
Did you know?
- “Dwellings in buildings built before 1946”: lower than in 98% of municipalities.
- “Wood heating systems”: lower than in 98% of municipalities.
- “Share of foreign nationals”: higher than in 95% of municipalities.
- Its area is roughly equal to 535 football pitches.
- Its population density is 19.1 times the national average.
- The nearest municipality is Chêne-Bourg, 1.5 km away.
- The nearest more populous municipality is Geneva (211,152 residents), 5.1 km away.
All indicators for Thônex
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 18.1% | 16.7% | 20.7% | ranked 1,382 of 1,811 |
Housing
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 7,640 | 256,816 | 4,927,050 | ranked 102 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 5.1% | 20.4% | 23.3% | ranked 1,767 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 26.7% | 20.5% | 25.3% | ranked 802 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 77.5% | 43.2% | 69.5% | ranked 380 of 1,806 |
Energy
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 73.9% | 80.7% | 53.5% | ranked 232 of 1,806 | |
| Heat pumps as main heating (2026) | 8.8% | 4.2% | 13.7% | ranked 1,342 of 1,806 | |
| Wood heating systems (2026) | 1.2% | 1.5% | 12.4% | ranked 1,762 of 1,806 | |
| District heating (2026) | 5.1% | 9.2% | 1.4% | ranked 456 of 1,806 | |
| Photovoltaic installations (2026) | 512 | 8,437 | 329,600 | ranked 83 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 481.3 kW | 319.8 kW | 1,134 kW | ranked 1,684 of 1,806 | |
| Rooftop solar electricity potential (2026) | 62.4 GWh/year | 2,053 GWh/year | 64,783 GWh/year | ranked 222 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 3,682 kWh/inh. | 3,823 kWh/inh. | 9,356 kWh/inh. | ranked 1,772 of 1,810 |
Economy
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 854 | 46,510 | 728,011 | ranked 140 of 2,112 | |
| Entities listed in the commercial register (2026) | 904 | 54,549 | 762,757 | ranked 142 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 53.4 | 101.6 | 64.9 | ranked 1,397 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 65.7% | 71.9% | 65.7% | ranked 904 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 30.3% | 22.8% | 29.0% | ranked 786 of 1,808 |
Employment
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 7,174 | 401,982 | 5,679,518 | ranked 125 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 423.5 | 748.4 | 362.9 | ranked 694 of 1,810 | |
| Share of jobs in services (2024) | 77.5% | 86.4% | 63.6% | ranked 400 of 1,804 | |
| Share of jobs in industry and construction (2024) | 22.3% | 12.7% | 24.2% | ranked 969 of 1,776 |
Society
| Indicator | Thônex | Geneva | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 37.8% | 41.9% | 18.9% | ranked 100 of 1,811 |
Sunshine and temperatures: Thônex
Frequently asked questions
What is the population of Thônex?
Thônex has 16,940 residents (2025), ranking 77 of 2,115 municipalities.
How big is Thônex?
Thônex covers 3.8 km², with a density of 4,435 people per km².
Is the population of Thônex growing?
Between 2015 and 2025, the population of Thônex went from 13,955 to 16,940, a change of +21.4%.
Where is Thônex?
Thônex is in Geneva. It belongs to Canton de Genève (district). Latitude 46.200, longitude 6.217.
Dwellings in buildings built before 1946: what is the figure for Thônex?
In Thônex, “Dwellings in buildings built before 1946” stands at 5.1% (2026), ranking 1,767 of 1,806 municipalities; the national median is 23.3%.
Wood heating systems: what is the figure for Thônex?
In Thônex, “Wood heating systems” stands at 1.2% (2026), ranking 1,762 of 1,806 municipalities; the national median is 12.4%.
How much electricity does a solar panel produce in Thônex?
In Thônex, a 1 kWp south-facing system tilted at 38° produces about 1,293 kWh a year.
Which municipalities border Thônex?
The nearest to Thônex are Chêne-Bourg (1.5 km), Puplinge (1.7 km), Vandoeuvres (2.3 km), Choulex (3.0 km), Cologny (3.2 km).