Postcode area · Lancy · Geneva

1212 Grand-Lancy (Lancy): key figures

1212 Grand-Lancy (postcode area in Lancy) has 19,989 residents in 2025 across 2.7 km², or 7,459 people per km². Population: +27.3% between 2015 and 2025.

  • 19,989 residents
  • 2.7 km²
  • 7,459 people/km²

1212 Grand-Lancy in numbers

Population
19,989
ranked 63 of 2,275
+27.3%between 2015 and 2025
2015–2025
Population density
7,459people/km²
ranked 27 of 2,275
Area
2.7km²
ranked 2,804 of 3,168
Share of foreign nationals
39.3%
ranked 145 of 2,040
Dwellings
8,853
ranked 104 of 3,164
Residential buildings
1,151
ranked 341 of 3,160
Dwellings in buildings built before 1946
6.8%
ranked 3,041 of 3,164

Key points

Nationally, 1212 Grand-Lancy ranks No. 63 of 2,275 postcode areas.

Population of 1212 Grand-Lancy over time

14,00016,00018,00020,0002015202020232025
Population, 2015–2025

1212 Grand-Lancy had 15,697 residents in 2015 and 19,989 in 2025.

YearPopulation
201515,697
202017,359
202319,011
202519,989

All indicators for 1212 Grand-Lancy

Next to the value for 1212 Grand-Lancy: all postcode areas of Lancy, then of the whole country (totals for counts, weighted averages for rates).

1212 Grand-LancyNational medianHover over or tap a bar to see what it shows.

Housing

Indicator1212 Grand-LancyLancySwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)8,853––ranked 104 of 3,164
Residential buildings (2026)1,151––ranked 341 of 3,160
Dwellings in buildings built before 1946 (2026)6.8%6.8%23.2%ranked 3,041 of 3,164
Dwellings in buildings built since 2001 (2026)32.3%32.3%23.6%ranked 630 of 3,164
Share of detached houses among residential buildings (2026)60.4%60.4%63.5%ranked 2,342 of 3,160

Energy

Indicator1212 Grand-LancyLancySwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)76.0%76.0%56.2%ranked 281 of 3,160
Heat pumps as main heating (2026)6.0%6.0%16.2%ranked 2,557 of 3,160
Wood heating systems (2026)2.1%2.1%13.5%ranked 2,929 of 3,160
District heating (2026)12.1%12.1%5.6%ranked 298 of 3,160

Society

Indicator1212 Grand-LancyLancySwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)39.3%39.3%29.8%ranked 145 of 2,040

Where is 1212 Grand-Lancy?

Frequently asked questions

What is the population of 1212 Grand-Lancy (Lancy)?

1212 Grand-Lancy has 19,989 residents in 2025. It covers 2.7 km², or 7,459 people per km².

Where is 1212 Grand-Lancy?

1212 Grand-Lancy (postcode area) is part of Lancy, in Geneva.

What is the value of “Share of foreign nationals” in 1212 Grand-Lancy?

Share of foreign nationals: 39.3% (2025), ranked 145 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 1212 Grand-Lancy?

Dwellings: 8,853 (2026), ranked 104 of 3,164 postcode areas in the country.