Postcode area · Grossaffoltern · Bern

3257 Grossaffoltern (Grossaffoltern): key figures

3257 Grossaffoltern (postcode area in Grossaffoltern) has 2,369 residents in 2025 across 12.4 km², or 191 people per km². By population, 3257 Grossaffoltern ranks No. 1 of 2 postcode areas in Grossaffoltern. Population: +2.0% between 2015 and 2025.

  • 2,369 residents
  • 12.4 km²
  • 191 people/km²

3257 Grossaffoltern in numbers

Population
2,369
ranked 933 of 2,275
+2.0%between 2015 and 2025
2015–2025
Population density
191people/km²
ranked 1,425 of 2,275
Area
12.4km²
ranked 881 of 3,168
Share of foreign nationals
8.1%
ranked 1,890 of 2,040
Dwellings
1,193
ranked 1,009 of 3,164
Residential buildings
776
ranked 687 of 3,160
Dwellings in buildings built before 1946
35.9%
ranked 1,113 of 3,164

Key points

By population, 3257 Grossaffoltern ranks No. 1 of 2 postcode areas in Grossaffoltern.

Nationally, 3257 Grossaffoltern ranks No. 933 of 2,275 postcode areas.

Population of 3257 Grossaffoltern over time

2,3002,3252,3502,3752,4002,4252015202020232025
Population, 2015–2025

3257 Grossaffoltern had 2,323 residents in 2015 and 2,369 in 2025.

YearPopulation
20152,323
20202,357
20232,415
20252,369

All indicators for 3257 Grossaffoltern

Next to the value for 3257 Grossaffoltern: all postcode areas of Grossaffoltern, then of the whole country (totals for counts, weighted averages for rates).

3257 GrossaffolternNational medianHover over or tap a bar to see what it shows.

Housing

Indicator3257 GrossaffolternGrossaffolternSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)1,193––ranked 1 of 2ranked 1,009 of 3,164
Residential buildings (2026)776––ranked 1 of 2ranked 687 of 3,160
Dwellings in buildings built before 1946 (2026)35.9%34.3%23.2%ranked 1 of 2ranked 1,113 of 3,164
Dwellings in buildings built since 2001 (2026)19.0%16.8%23.6%ranked 1 of 2ranked 1,824 of 3,164
Share of detached houses among residential buildings (2026)72.4%73.6%63.5%ranked 2 of 2ranked 1,319 of 3,160

Energy

Indicator3257 GrossaffolternGrossaffolternSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)54.2%56.6%56.2%ranked 2 of 2ranked 1,311 of 3,160
Heat pumps as main heating (2026)20.4%20.2%16.2%ranked 1 of 2ranked 870 of 3,160
Wood heating systems (2026)18.5%17.9%13.5%ranked 1 of 2ranked 1,401 of 3,160
District heating (2026)2.1%1.6%5.6%ranked 1 of 2ranked 1,091 of 3,160

Society

Indicator3257 GrossaffolternGrossaffolternSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)8.1%9.0%29.8%ranked 2 of 2ranked 1,890 of 2,040

Where is 3257 Grossaffoltern?

Frequently asked questions

What is the population of 3257 Grossaffoltern (Grossaffoltern)?

3257 Grossaffoltern has 2,369 residents in 2025. It covers 12.4 km², or 191 people per km².

Where is 3257 Grossaffoltern?

3257 Grossaffoltern (postcode area) is part of Grossaffoltern, in Bern.

What is the value of “Share of foreign nationals” in 3257 Grossaffoltern?

Share of foreign nationals: 8.1% (2025), ranked 1,890 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 3257 Grossaffoltern?

Dwellings: 1,193 (2026), ranked 1,009 of 3,164 postcode areas in the country.