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Demographics

BFS · 2025
Women
8'746 51.6%
Men
8'194 48.4%
Children & youth (0–19)
3'689 21.8%
Swiss citizens
10'535 62.2%
Foreign residents
6'405 37.8%
Population density
4'435 pop./km²
0–19 · 3'689 · 21.8%20–64 · 10'183 · 60.1%65+ · 3'068 · 18.1%
Foreign residents 37.8%0%64.0%
Population change 2025: +131 (+0.8%) · 155 births · 92 deaths · net migration +224
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026
27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% Yes
36.8% YesNo 63.2%
27.09.2026Loi 13579 indemnité à la Haute école spécialisée de Suisse occidentale – GenèveCantonal GE● Rejected · 41.5% Yes
45.1% YesNo 54.9%
27.09.2026Loi 13725 crédit de 39 500 000 francs pour la réalisation de projets transfrontaliersCantonal GE● Accepted · 56.8% Yes
49.3% YesNo 50.7%
27.09.2026IN 198 « Pour une contraception gratuite »Cantonal GE● Accepted · 58.5% Yes
54.6% YesNo 45.4%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% Yes
48.9% YesNo 51.1%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% Yes
38.2% YesNo 61.8%
14.06.2026Loi sur les heures d'ouverture des magasins (LHOM) (Ouverture du dimanche)Cantonal GE● Accepted · 52.8% Yes
57.1% YesNo 42.9%
14.06.2026Loi pour une expression non ostentatoire des convictions religieusesCantonal GE● Accepted · 51.4% Yes
56.8% YesNo 43.3%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
SVP18.4% · strongest party
SVP18.4%
FDP17.2%
SP15.7%
MCR12.9%
GRÜNE12.5%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier44%
Cantonal tax multiplier147.5%
44%GE range 25%51%
Tax rank 28 of 45 in canton Geneva
Tax burden
Single, 100'000 CHF gross income
15'368 CHF(15.4%)
Rank 26 of 45 in the canton · 1067 of 2110 in Switzerland
Median canton 15'212 CHF · median Switzerland 15'290 CHF
Cheapest Cologny 13'885 CHF · most expensive Avully 15'914 CHF
Income tax as % of gross income
0%8%15%23%30%40k50k100k150k200k250k300k
100'000 CHF:15'368 CHF(~15.4%)
ThônexCanton range GenevaSwitzerland median
Show data table
Gross incomeThônexGenevaSwitzerland median
40'0005.1%4.6–5.3%5.4%
50'0007.6%6.8–7.8%7.8%
60'0009.8%8.8–10.1%10.5%
70'00011.5%10.4–12%11.9%
80'00013%11.7–13.4%13.1%
90'00014.1%12.7–14.6%14.1%
100'00015.4%13.9–15.9%15.3%
110'00016.5%14.9–17.1%16.3%
120'00017.5%15.8–18.1%17.2%
130'00018.3%16.6–18.9%18.1%
140'00019.2%17.4–19.8%19%
150'00019.9%18.1–20.6%19.7%
175'00021.7%19.8–22.4%21.6%
200'00023.3%21.3–24%23.2%
225'00024.7%22.6–25.5%24.6%
250'00025.9%23.8–26.7%25.8%
275'00027%24.8–27.8%26.8%
300'00027.8%25.6–28.6%27.4%
2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020
Annual mean temperature 1991–202010.9 °C
Precipitation 1991–2020898 mm
10.9 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
434 m
Mean elevation
418 m
Relief
45 m
Mean slope
1.4°
Flat share
96.6%
South-facing
1.6%
Above 2000 m
0.0%
Relief 45 m0 m3'847 m

Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026
Roof potential
62.4 GWh/yr
≈ households powered
13'900
Per inhabitant
3'682 kWh/yr
62 GWh/yr01'133 GWh/yr
BFE solar factsheet ↗

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026

Electricity

ElCom · 2027
Tariff H4
24.43 Rp./kWh
Energy
9.33 Rp./kWh
Grid usage
9.78 Rp./kWh
Levies + grid surcharge
3.54 Rp./kWh
24.43 Rp./kWh10.5645.88
Canton median 24.43 Rp./kWhSwiss median 26.53 Rp./kWh
Network operator Services industriels de Genève
ElCom tariff comparison ↗
How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026
Standard model, deductible 300752 CHF/mo
Ø premium in canton Geneva539 CHF/mo
Estimate Switzerland 2026465.3 CHF/mo

Premiums are set not per municipality but per canton and premium region. Shown is the average adult premium paid in canton Geneva (2024, BAG) — it applies canton-wide, not to any single location.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE
Vacancy rate
0.28 %
Second homes
12 %
Avg. rooms
3.1
Dwellings
7'597
Built before 19465.1%
Built since 200126.0%
0.28 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Economy

BFS · 2024
Jobs
7'174
Workplaces
854
Services share
77.5 %
Jobs by sector: Primary 12 (0.2%) · Secondary 1'603 (22.3%) · Tertiary 5'559 (77.5%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
2
Organic share
50 %
Farmland
7 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 34 min · Car 21 min
AgglomerationPT 34 min · Car 21 min
Remoteness 23/45 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number6640
Head of governmentFlorian Wünsche · FDP.Die Liberalen
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities16'940 #7 GE · #77 CHGrowing municipalities0.8% #25 GE · #925 CHShrinking municipalities0.8% #21 GE · #1195 CHJobs per resident0.42 #15 GE · #786 CHFamilies & children21.8% #33 GE · #597 CHAge structure18.1% #27 GE · #1635 CHWomen share51.6% #21 GE · #225 CHForeign residents37.8% #9 GE · #103 CHPopulation density4'435/km² #7 GE · #15 CHTax burden15'368 #29 GE · #1070 CHTaxes44% #28 GEWarmest municipalities10.9 °C #34 GE · #122 CHSunniest municipalities46.9% #43 GE · #469 CHRainiest municipalities898 mm #25 GE · #1955 CHVoter turnout52% #33 GE · #1594 CHAgainst Switzerland21.6% #18 GE · #443 CHAligned with Switzerland78.4% #22 GE · #1064 CHSVP strongholds18.4% #16 GE · #1868 CHSP strongholds15.7% #14 GE · #876 CHCentre strongholds9.8% #18 GE · #1225 CHFDP strongholds17.2% #26 GE · #646 CHGLP strongholds7.4% #19 GE · #694 CHGreen strongholds12.5% #36 GE · #302 CHLargest by area3.8 km² #35 GE · #1759 CHHighest municipalities405 m #40 GE · #1874 CHSecond homes12% #30 GE · #909 CHOrganic farming50% #7 GE · #148 CHBest-connected municipalities34 min #21 GE · #151 CHRemotest municipalities34 min #23 GE · #1979 CHHighest peaks434 m #34 GE · #2047 CHHighest-lying municipalities418 m #24 GE · #1919 CHGreatest vertical range45 m #42 GE · #2052 CHSteepest municipalities1.4° #39 GE · #2054 CHSolar potential62 GWh #11 GE · #222 CHSolar potential per capita3'682 kWh #38 GE · #2069 CHCheapest electricity24.43 Rp./kWh #39 GE · #317 CHMost expensive electricity24.43 Rp./kWh #40 GE · #1823 CH

Localities

swisstopo · 1
What is the postal code of Thônex?
The postal code of Thônex is 1226.
What is the tax rate in Thônex?
The municipal tax multiplier of Thônex is 44% (2026); canton GE levies 147.5%.
How much tax do you pay in Thônex?
A single person without children pays about 15'368 CHF income tax in Thônex on 100'000 CHF gross income (federal, cantonal, municipal), rank 26 of 45 in canton GE. Source: ESTV (2026).
How many residents does Thônex have?
Thônex has 16'940 residents (2025).
How many foreign residents live in Thônex?
Thônex has 6'405 foreign residents, a share of 37.81% (2025).

Map

OpenStreetMap