Postcode area · Geneva · Geneva

1203 Genève (Geneva): key figures

1203 Genève (postcode area in Geneva) has 34,926 residents in 2025 across 2.0 km², or 17,037 people per km². By population, 1203 Genève ranks No. 3 of 9 postcode areas in Geneva. Population: +4.8% between 2015 and 2025.

  • 34,926 residents
  • 2.0 km²
  • 17,037 people/km²

1203 Genève in numbers

Population
34,926
ranked 10 of 2,275
+4.8%between 2015 and 2025
2015–2025
Population density
17,037people/km²
ranked 3 of 2,275
Area
2.0km²
ranked 2,945 of 3,168
Share of foreign nationals
45.8%
ranked 51 of 2,040
Dwellings
17,997
ranked 12 of 3,164
Residential buildings
1,029
ranked 428 of 3,160
Dwellings in buildings built before 1946
22.9%
ranked 1,928 of 3,164

Key points

By population, 1203 Genève ranks No. 3 of 9 postcode areas in Geneva.

Nationally, 1203 Genève ranks No. 10 of 2,275 postcode areas.

Population of 1203 Genève over time

33,00033,50034,00034,50035,0002015202020232025
Population, 2015–2025

1203 Genève had 33,341 residents in 2015 and 34,926 in 2025.

YearPopulation
201533,341
202033,787
202334,436
202534,926

All indicators for 1203 Genève

Next to the value for 1203 Genève: all postcode areas of Geneva, then of the whole country (totals for counts, weighted averages for rates).

1203 GenèveNational medianHover over or tap a bar to see what it shows.

Housing

Indicator1203 GenèveGenevaSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)17,997––ranked 3 of 9ranked 12 of 3,164
Residential buildings (2026)1,029––ranked 2 of 9ranked 428 of 3,160
Dwellings in buildings built before 1946 (2026)22.9%34.2%23.2%ranked 7 of 9ranked 1,928 of 3,164
Dwellings in buildings built since 2001 (2026)12.4%9.1%23.6%ranked 4 of 9ranked 2,391 of 3,164
Share of detached houses among residential buildings (2026)21.2%11.5%63.5%ranked 3 of 9ranked 3,119 of 3,160

Energy

Indicator1203 GenèveGenevaSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)80.3%88.8%56.2%ranked 8 of 9ranked 157 of 3,160
Heat pumps as main heating (2026)1.7%1.4%16.2%ranked 2 of 9ranked 3,040 of 3,160
Wood heating systems (2026)0.9%0.7%13.5%ranked 3 of 9ranked 3,083 of 3,160
District heating (2026)16.0%7.7%5.6%ranked 2 of 9ranked 211 of 3,160

Society

Indicator1203 GenèveGenevaSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)45.8%49.8%29.8%ranked 6 of 9ranked 51 of 2,040

Where is 1203 Genève?

Frequently asked questions

What is the population of 1203 Genève (Geneva)?

1203 Genève has 34,926 residents in 2025. It covers 2.0 km², or 17,037 people per km².

Where is 1203 Genève?

1203 Genève (postcode area) is part of Geneva, in Geneva.

What is the value of “Share of foreign nationals” in 1203 Genève?

Share of foreign nationals: 45.8% (2025), ranked 51 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 1203 Genève?

Dwellings: 17,997 (2026), ranked 12 of 3,164 postcode areas in the country.