Skip to main content

Demographics

BFS · 2025
Women
6'534 51.1%
Men
6'241 48.9%
Children & youth (0–19)
3'046 23.8%
Swiss citizens
7'087 55.5%
Foreign residents
5'688 44.5%
Population density
2'917 pop./km²
0–19 · 3'046 · 23.8%20–64 · 7'685 · 60.2%65+ · 2'044 · 16.0%
Foreign residents 44.5%0%64.0%
Population change 2025: −287 (−2.2%) · 100 births · 61 deaths · net migration −259
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
36.9% YesNo 63.1%
27.09.2026Loi 13579 indemnité à la Haute école spécialisée de Suisse occidentale – GenèveCantonal GE● Rejected · 41.5% Yes
40.6% YesNo 59.4%
27.09.2026Loi 13725 crédit de 39 500 000 francs pour la réalisation de projets transfrontaliersCantonal GE● Accepted · 56.8% Yes
51.3% YesNo 48.7%
27.09.2026IN 198 « Pour une contraception gratuite »Cantonal GE● Accepted · 58.5% Yes
57.2% YesNo 42.8%
14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% Yes
41.4% YesNo 58.6%
14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% Yes
35.0% YesNo 65.1%
14.06.2026Loi sur les heures d'ouverture des magasins (LHOM) (Ouverture du dimanche)Cantonal GE● Accepted · 52.8% Yes
52.8% YesNo 47.2%
14.06.2026Loi pour une expression non ostentatoire des convictions religieusesCantonal GE● Accepted · 51.4% Yes
48.4% YesNo 51.6%
All federal votes →
Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023
GRÜNE17.7% · strongest party
GRÜNE17.7%
SVP16.5%
SP16.3%
MCR14.6%
FDP13.5%
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 27 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%)
Le Grand-SaconnexCanton range GenevaSwitzerland median
Show data table
Gross incomeLe Grand-SaconnexGenevaSwitzerland 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 1991–202011 °C
Precipitation 1991–2020955 mm
11 °CCH range -5.5°14°
1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m
Highest point
468 m
Mean elevation
432 m
Relief
59 m
Mean slope
2.2°
Flat share
90.9%
South-facing
0.8%
Above 2000 m
0.0%
Relief 59 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
72.6 GWh/yr
Roofs + façades
88.6 GWh/yr
≈ households powered
16'100
Per inhabitant
5'681 kWh/yr
73 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
0.38 %
Second homes
14.2 %
Avg. rooms
3.4
Dwellings
5'323
Built before 19467.6%
Built since 200129.7%
0.38 %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
12'358
Workplaces
811
Services share
98.6 %
Jobs by sector: Primary 0 (0.0%) · Secondary 178 (1.4%) · Tertiary 12'180 (98.6%)
STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Accessibility

ARE · NPVM
Major centrePT 25 min · Car 12 min
AgglomerationPT 25 min · Car 12 min
Remoteness 38/45 in canton
National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0
BFS municipality number6623
Head of governmentValérie Tissot-Buchoux · FDP.Die Liberalen
Wikidata · continuously updated, retrieved 24.09.2026
Largest municipalities12'775 #10 GE · #123 CHGrowing municipalities-2.2% #44 GE · #2002 CHShrinking municipalities-2.2% #2 GE · #107 CHJobs per resident0.97 #4 GE · #95 CHFamilies & children23.8% #13 GE · #197 CHAge structure16% #38 GE · #1906 CHWomen share51.1% #25 GE · #370 CHForeign residents44.5% #5 GE · #43 CHPopulation density2'917/km² #9 GE · #31 CHTax burden15'368 #27 GE · #1068 CHTaxes44% #27 GEWarmest municipalities11 °C #22 GE · #90 CHSunniest municipalities47.5% #22 GE · #375 CHRainiest municipalities955 mm #5 GE · #1803 CHVoter turnout48.5% #41 GE · #1895 CHAgainst Switzerland25.5% #4 GE · #226 CHAligned with Switzerland74.5% #36 GE · #1263 CHSVP strongholds16.5% #25 GE · #1935 CHSP strongholds16.3% #12 GE · #814 CHCentre strongholds8.8% #27 GE · #1343 CHFDP strongholds13.5% #34 GE · #991 CHGLP strongholds6.5% #25 GE · #869 CHGreen strongholds17.7% #4 GE · #48 CHLargest by area4.4 km² #29 GE · #1655 CHHighest municipalities457 m #8 GE · #1481 CHSecond homes14.2% #18 GE · #650 CHBest-connected municipalities25 min #7 GE · #48 CHRemotest municipalities25 min #38 GE · #2066 CHHighest peaks468 m #19 GE · #1985 CHHighest-lying municipalities432 m #12 GE · #1850 CHGreatest vertical range59 m #30 GE · #2010 CHSteepest municipalities2.2° #24 GE · #1989 CHSolar potential73 GWh #9 GE · #170 CHSolar potential per capita5'681 kWh #29 GE · #1871 CHCheapest electricity24.43 Rp./kWh #22 GE · #300 CHMost expensive electricity24.43 Rp./kWh #23 GE · #1806 CH

Localities

swisstopo · 3
What is the postal code of Le Grand-Saconnex?
Le Grand-Saconnex has 4 postal codes: 1209, 1215, 1216, 1218.
What is the tax rate in Le Grand-Saconnex?
The municipal tax multiplier of Le Grand-Saconnex is 44% (2026); canton GE levies 147.5%.
How much tax do you pay in Le Grand-Saconnex?
A single person without children pays about 15'368 CHF income tax in Le Grand-Saconnex on 100'000 CHF gross income (federal, cantonal, municipal), rank 26 of 45 in canton GE. Source: ESTV (2026).
How many residents does Le Grand-Saconnex have?
Le Grand-Saconnex has 12'775 residents (2025).
How many foreign residents live in Le Grand-Saconnex?
Le Grand-Saconnex has 5'688 foreign residents, a share of 44.52% (2025).

Map

OpenStreetMap