Postcode area · Thônex · Geneva

1226 Thônex (Thônex): key figures

1226 Thônex (postcode area in Thônex) has 16,615 residents in 2025 across 3.8 km², or 4,350 people per km². Population: +20.8% between 2015 and 2025.

  • 16,615 residents
  • 3.8 km²
  • 4,350 people/km²

1226 Thônex in numbers

Population
16,615
ranked 101 of 2,275
+20.8%between 2015 and 2025
2015–2025
Population density
4,350people/km²
ranked 58 of 2,275
Area
3.8km²
ranked 2,520 of 3,168
Share of foreign nationals
38.1%
ranked 177 of 2,040
Dwellings
7,640
ranked 130 of 3,164
Residential buildings
1,844
ranked 127 of 3,160
Dwellings in buildings built before 1946
5.1%
ranked 3,096 of 3,164

Key points

Nationally, 1226 Thônex ranks No. 101 of 2,275 postcode areas.

Population of 1226 Thônex over time

13,00014,00015,00016,00017,0002015202020232025
Population, 2015–2025

1226 Thônex had 13,759 residents in 2015 and 16,615 in 2025.

YearPopulation
201513,759
202014,335
202316,357
202516,615

All indicators for 1226 Thônex

Next to the value for 1226 Thônex: all postcode areas of Thônex, then of the whole country (totals for counts, weighted averages for rates).

1226 ThônexNational medianHover over or tap a bar to see what it shows.

Housing

Indicator1226 ThônexThônexSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)7,640––ranked 130 of 3,164
Residential buildings (2026)1,844––ranked 127 of 3,160
Dwellings in buildings built before 1946 (2026)5.1%5.1%23.2%ranked 3,096 of 3,164
Dwellings in buildings built since 2001 (2026)26.7%26.7%23.6%ranked 1,097 of 3,164
Share of detached houses among residential buildings (2026)77.5%77.5%63.5%ranked 771 of 3,160

Energy

Indicator1226 ThônexThônexSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)73.9%73.9%56.2%ranked 353 of 3,160
Heat pumps as main heating (2026)8.8%8.8%16.2%ranked 2,130 of 3,160
Wood heating systems (2026)1.2%1.2%13.5%ranked 3,046 of 3,160
District heating (2026)5.1%5.1%5.6%ranked 659 of 3,160

Society

Indicator1226 ThônexThônexSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)38.1%38.1%29.8%ranked 177 of 2,040

Where is 1226 Thônex?

Frequently asked questions

What is the population of 1226 Thônex (Thônex)?

1226 Thônex has 16,615 residents in 2025. It covers 3.8 km², or 4,350 people per km².

Where is 1226 Thônex?

1226 Thônex (postcode area) is part of Thônex, in Geneva.

What is the value of “Share of foreign nationals” in 1226 Thônex?

Share of foreign nationals: 38.1% (2025), ranked 177 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 1226 Thônex?

Dwellings: 7,640 (2026), ranked 130 of 3,164 postcode areas in the country.