Postcode area · Biel/Bienne · Bern

2504 Biel/Bienne (Biel/Bienne): key figures

2504 Biel/Bienne (postcode area in Biel/Bienne) has 18,342 residents in 2025 across 10.0 km², or 1,836 people per km². By population, 2504 Biel/Bienne ranks No. 3 of 4 postcode areas in Biel/Bienne. Population: +5.5% between 2015 and 2025.

  • 18,342 residents
  • 10.0 km²
  • 1,836 people/km²

2504 Biel/Bienne in numbers

Population
18,342
ranked 84 of 2,275
+5.5%between 2015 and 2025
2015–2025
Population density
1,836people/km²
ranked 172 of 2,275
Area
10.0km²
ranked 1,162 of 3,168
Share of foreign nationals
39.1%
ranked 151 of 2,040
Dwellings
9,732
ranked 88 of 3,164
Residential buildings
1,909
ranked 110 of 3,160
Dwellings in buildings built before 1946
11.9%
ranked 2,763 of 3,164

Key points

By population, 2504 Biel/Bienne ranks No. 3 of 4 postcode areas in Biel/Bienne.

Nationally, 2504 Biel/Bienne ranks No. 84 of 2,275 postcode areas.

Population of 2504 Biel/Bienne over time

17,25017,50017,75018,00018,25018,5002015202020232025
Population, 2015–2025

2504 Biel/Bienne had 17,384 residents in 2015 and 18,342 in 2025.

YearPopulation
201517,384
202017,611
202318,043
202518,342

All indicators for 2504 Biel/Bienne

Next to the value for 2504 Biel/Bienne: all postcode areas of Biel/Bienne, then of the whole country (totals for counts, weighted averages for rates).

2504 Biel/BienneNational medianHover over or tap a bar to see what it shows.

Housing

Indicator2504 Biel/BienneBiel/BienneSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)9,732––ranked 3 of 4ranked 88 of 3,164
Residential buildings (2026)1,909––ranked 3 of 4ranked 110 of 3,160
Dwellings in buildings built before 1946 (2026)11.9%31.4%23.2%ranked 4 of 4ranked 2,763 of 3,164
Dwellings in buildings built since 2001 (2026)15.4%14.5%23.6%ranked 3 of 4ranked 2,152 of 3,164
Share of detached houses among residential buildings (2026)36.1%31.8%63.5%ranked 2 of 4ranked 3,040 of 3,160

Energy

Indicator2504 Biel/BienneBiel/BienneSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)83.1%85.8%56.2%ranked 3 of 4ranked 106 of 3,160
Heat pumps as main heating (2026)5.3%7.1%16.2%ranked 4 of 4ranked 2,654 of 3,160
Wood heating systems (2026)1.6%2.0%13.5%ranked 4 of 4ranked 3,001 of 3,160
District heating (2026)8.5%3.8%5.6%ranked 1 of 4ranked 442 of 3,160

Society

Indicator2504 Biel/BienneBiel/BienneSwitzerlandPosition?Rank in the areaRank in the country
Share of foreign nationals (2025)39.1%35.5%29.8%ranked 1 of 4ranked 151 of 2,040

Where is 2504 Biel/Bienne?

Frequently asked questions

What is the population of 2504 Biel/Bienne (Biel/Bienne)?

2504 Biel/Bienne has 18,342 residents in 2025. It covers 10.0 km², or 1,836 people per km².

Where is 2504 Biel/Bienne?

2504 Biel/Bienne (postcode area) is part of Biel/Bienne, in Bern.

What is the value of “Share of foreign nationals” in 2504 Biel/Bienne?

Share of foreign nationals: 39.1% (2025), ranked 151 of 2,040 postcode areas in the country.

What is the value of “Dwellings” in 2504 Biel/Bienne?

Dwellings: 9,732 (2026), ranked 88 of 3,164 postcode areas in the country.