Postcode area · Vernier · Geneva

1220 Les Avanchets (Vernier): key figures

1220 Les Avanchets (postcode area in Vernier) has 5,460 residents in 2025 across 0.2 km², or 26,000 people per km². By population, 1220 Les Avanchets ranks No. 3 of 3 postcode areas in Vernier. Population: −8.0% between 2015 and 2025.

  • 5,460 residents
  • 0.2 km²
  • 26,000 people/km²

1220 Les Avanchets in numbers

Population
5,460
ranked 414 of 2,275
−8.0%between 2015 and 2025
2015–2025
Population density
26,000people/km²
ranked 1 of 2,275
Area
0.2km²
ranked 3,159 of 3,168
Share of foreign nationals
41.1%
ranked 111 of 2,040
Dwellings
2,390
ranked 496 of 3,164
Residential buildings
102
ranked 2,908 of 3,160
Dwellings in buildings built before 1946
0.0%
ranked 3,161 of 3,164

Key points

By population, 1220 Les Avanchets ranks No. 3 of 3 postcode areas in Vernier.

Nationally, 1220 Les Avanchets ranks No. 414 of 2,275 postcode areas.

Population of 1220 Les Avanchets over time

5,4005,6005,8006,0002015202020232025
Population, 2015–2025

1220 Les Avanchets had 5,936 residents in 2015 and 5,460 in 2025.

YearPopulation
20155,936
20205,762
20235,595
20255,460

All indicators for 1220 Les Avanchets

Next to the value for 1220 Les Avanchets: all postcode areas of Vernier, then of the whole country (totals for counts, weighted averages for rates).

1220 Les AvanchetsNational medianHover over or tap a bar to see what it shows.

Housing

Indicator1220 Les AvanchetsVernierSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)2,390––ranked 3 of 3ranked 496 of 3,164
Residential buildings (2026)102––ranked 3 of 3ranked 2,908 of 3,160
Dwellings in buildings built before 1946 (2026)0.0%8.0%23.2%ranked 3 of 3ranked 3,161 of 3,164
Dwellings in buildings built since 2001 (2026)0.0%24.4%23.6%ranked 3 of 3ranked 3,141 of 3,164
Share of detached houses among residential buildings (2026)0.0%63.4%63.5%ranked 3 of 3ranked 3,158 of 3,160

Energy

Indicator1220 Les AvanchetsVernierSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)1.0%71.8%56.2%ranked 3 of 3ranked 3,154 of 3,160
Heat pumps as main heating (2026)0.0%6.0%16.2%ranked 3 of 3ranked 3,120 of 3,160
Wood heating systems (2026)0.0%1.8%13.5%ranked 3 of 3ranked 3,150 of 3,160
District heating (2026)98.0%15.4%5.6%ranked 1 of 3ranked 1 of 3,160

Society

Indicator1220 Les AvanchetsVernierSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)41.1%45.9%29.8%ranked 3 of 3ranked 111 of 2,040

Where is 1220 Les Avanchets?

Frequently asked questions

What is the population of 1220 Les Avanchets (Vernier)?

1220 Les Avanchets has 5,460 residents in 2025. It covers 0.2 km², or 26,000 people per km².

Where is 1220 Les Avanchets?

1220 Les Avanchets (postcode area) is part of Vernier, in Geneva.

What is the value of “Share of foreign nationals” in 1220 Les Avanchets?

Share of foreign nationals: 41.1% (2025), ranked 111 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 1220 Les Avanchets?

Dwellings: 2,390 (2026), ranked 496 of 3,164 postcode areas in the country.