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Demographics

BFS · 2025
Women
1'314 52.0%
Men
1'214 48.0%
Children & youth (0–19)
557 22.0%
Swiss citizens
1'880 74.4%
Foreign residents
648 25.6%
Population density
506 pop./km²
0–19 · 557 · 22.0%20–64 · 1'444 · 57.1%65+ · 527 · 20.8%
Foreign residents 25.6%0%64.0%
Population change 2025: −17 (−0.7%) · 15 births · 11 deaths · net migration −20
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
33.0% YesNo 67.0%
27.09.2026Loi 13579 indemnité à la Haute école spécialisée de Suisse occidentale – GenèveCantonal GE● Rejected · 41.5% Yes
45.9% YesNo 54.1%
27.09.2026Loi 13725 crédit de 39 500 000 francs pour la réalisation de projets transfrontaliersCantonal GE● Accepted · 56.8% Yes
59.8% YesNo 40.2%
27.09.2026IN 198 « Pour une contraception gratuite »Cantonal GE● Accepted · 58.5% Yes
54.6% YesNo 45.5%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% Yes
44.4% YesNo 55.6%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% Yes
37.7% YesNo 62.4%
14.06.2026Loi sur les heures d'ouverture des magasins (LHOM) (Ouverture du dimanche)Cantonal GE● Accepted · 52.8% Yes
56.5% YesNo 43.5%
14.06.2026Loi pour une expression non ostentatoire des convictions religieusesCantonal GE● Accepted · 51.4% Yes
59.2% YesNo 40.8%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
Mitte17.2% · strongest party
Mitte17.2%
GRÜNE16.1%
FDP15.8%
SP14.7%
SVP13.7%
sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026
Municipal tax multiplier43%
Cantonal tax multiplier147.5%
43%GE range 25%51%
Tax rank 24 of 45 in canton Geneva
Tax burden
Single, 100'000 CHF gross income
15'290 CHF(15.3%)
Rank 24 of 45 in the canton · 1050 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:15'290 CHF(~15.3%)
BardonnexCanton range GenevaSwitzerland median
Show data table
Gross incomeBardonnexGenevaSwitzerland median
40'0005.1%4.6–5.3%5.4%
50'0007.5%6.8–7.8%7.8%
60'0009.7%8.8–10.1%10.5%
70'00011.5%10.4–12%11.9%
80'00012.9%11.7–13.4%13.1%
90'00014%12.7–14.6%14.1%
100'00015.3%13.9–15.9%15.3%
110'00016.4%14.9–17.1%16.3%
120'00017.4%15.8–18.1%17.2%
130'00018.2%16.6–18.9%18.1%
140'00019.1%17.4–19.8%19%
150'00019.8%18.1–20.6%19.7%
175'00021.6%19.8–22.4%21.6%
200'00023.2%21.3–24%23.2%
225'00024.6%22.6–25.5%24.6%
250'00025.8%23.8–26.7%25.8%
275'00026.9%24.8–27.8%26.8%
300'00027.7%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 1991–202011 °C
Precipitation 1991–2020839 mm
11 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
500 m
Mean elevation
469 m
Relief
84 m
Mean slope
2.6°
Flat share
91.3%
South-facing
4.0%
Above 2000 m
0.0%
Relief 84 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
19.3 GWh/yr
Roofs + façades
23.7 GWh/yr
≈ households powered
4'300
Per inhabitant
7'631 kWh/yr
19 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
0.27 %
Second homes
12.5 %
Avg. rooms
3.6
Dwellings
1'119
Built before 194628.3%
Built since 200119.0%
0.27 %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
1'026
Workplaces
169
Services share
50.2 %
Jobs by sector: Primary 45 (4.4%) · Secondary 466 (45.4%) · Tertiary 515 (50.2%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025
Farms
12
Organic share
33.3 %
Farmland
129 ha
Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM
Major centrePT 39 min · Car 20 min
AgglomerationPT 39 min · Car 20 min
Remoteness 16/45 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number6605
Head of governmentBéatrice Guex-Crosier
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities2'528 #27 GE · #834 CHGrowing municipalities-0.7% #38 GE · #1711 CHShrinking municipalities-0.7% #8 GE · #400 CHJobs per resident0.41 #16 GE · #828 CHFamilies & children22% #31 GE · #552 CHAge structure20.8% #8 GE · #1086 CHWomen share52% #12 GE · #146 CHForeign residents25.6% #28 GE · #520 CHPopulation density506/km² #26 GE · #496 CHTax burden15'290 #24 GE · #1050 CHTaxes43% #24 GEWarmest municipalities11 °C #13 GE · #81 CHSunniest municipalities47.6% #13 GE · #359 CHRainiest municipalities839 mm #44 GE · #2029 CHVoter turnout57.7% #23 GE · #865 CHAgainst Switzerland19.6% #26 GE · #578 CHAligned with Switzerland80.4% #15 GE · #931 CHSVP strongholds13.7% #38 GE · #2028 CHSP strongholds14.7% #21 GE · #981 CHCentre strongholds17.2% #2 GE · #688 CHFDP strongholds15.8% #29 GE · #759 CHGLP strongholds5.5% #38 GE · #1098 CHGreen strongholds16.1% #12 GE · #89 CHLargest by area5 km² #22 GE · #1551 CHHighest municipalities470 m #2 GE · #1388 CHSecond homes12.5% #29 GE · #844 CHOrganic farming33.3% #11 GE · #300 CHBest-connected municipalities39 min #29 GE · #221 CHRemotest municipalities39 min #16 GE · #1902 CHHighest peaks500 m #6 GE · #1881 CHHighest-lying municipalities469 m #2 GE · #1602 CHGreatest vertical range84 m #18 GE · #1918 CHSteepest municipalities2.6° #16 GE · #1949 CHSolar potential19 GWh #25 GE · #1047 CHSolar potential per capita7'631 kWh #18 GE · #1544 CHCheapest electricity24.43 Rp./kWh #5 GE · #283 CHMost expensive electricity24.43 Rp./kWh #6 GE · #1789 CH

Localities

swisstopo · 2
What is the postal code of Bardonnex?
Bardonnex has 2 postal codes: 1257, 1258.
What is the tax rate in Bardonnex?
The municipal tax multiplier of Bardonnex is 43% (2026); canton GE levies 147.5%.
How much tax do you pay in Bardonnex?
A single person without children pays about 15'290 CHF income tax in Bardonnex on 100'000 CHF gross income (federal, cantonal, municipal), rank 24 of 45 in canton GE. Source: ESTV (2026).
How many residents does Bardonnex have?
Bardonnex has 2'528 residents (2025).
How many foreign residents live in Bardonnex?
Bardonnex has 648 foreign residents, a share of 25.63% (2025).

Map

OpenStreetMap