Postcode area · Buchegg · Solothurn

4578 Bibern SO (Buchegg): key figures

4578 Bibern SO (postcode area in Buchegg) has 256 residents in 2025 across 3.0 km², or 85.3 people per km². By population, 4578 Bibern SO ranks No. 5 of 6 postcode areas in Buchegg. Population: +6.7% between 2015 and 2025.

  • 256 residents
  • 3.0 km²
  • 85 people/km²

4578 Bibern SO in numbers

Population
256
ranked 2,197 of 2,275
+6.7%between 2015 and 2025
2015–2025
Population density
85people/km²
ranked 1,959 of 2,275
Area
3.0km²
ranked 2,727 of 3,168
Dwellings
130
ranked 2,993 of 3,164
Residential buildings
77
ranked 3,022 of 3,160
Dwellings in buildings built before 1946
46.9%
ranked 617 of 3,164
Dwellings in buildings built since 2001
11.5%
ranked 2,453 of 3,164

Key points

By population, 4578 Bibern SO ranks No. 5 of 6 postcode areas in Buchegg.

Nationally, 4578 Bibern SO ranks No. 2,197 of 2,275 postcode areas.

Population of 4578 Bibern SO over time

2402452502552602015202020232025
Population, 2015–2025

4578 Bibern SO had 240 residents in 2015 and 256 in 2025.

YearPopulation
2015240
2020249
2023242
2025256

All indicators for 4578 Bibern SO

Next to the value for 4578 Bibern SO: all postcode areas of Buchegg, then of the whole country (totals for counts, weighted averages for rates).

4578 Bibern SONational medianHover over or tap a bar to see what it shows.

Housing

Indicator4578 Bibern SOBucheggSwitzerlandPosition?Rank in the areaRank in the country
Dwellings (2026)130––ranked 5 of 10ranked 2,993 of 3,164
Residential buildings (2026)77––ranked 8 of 10ranked 3,022 of 3,160
Dwellings in buildings built before 1946 (2026)46.9%45.6%23.2%ranked 3 of 10ranked 617 of 3,164
Dwellings in buildings built since 2001 (2026)11.5%17.1%23.6%ranked 9 of 10ranked 2,453 of 3,164
Share of detached houses among residential buildings (2026)62.3%73.8%63.5%ranked 9 of 10ranked 2,222 of 3,160

Energy

Indicator4578 Bibern SOBucheggSwitzerlandPosition?Rank in the areaRank in the country
Oil or gas heating systems (2026)49.2%47.0%56.2%ranked 6 of 10ranked 1,610 of 3,160
Heat pumps as main heating (2026)6.3%15.2%16.2%ranked 10 of 10ranked 2,508 of 3,160
Wood heating systems (2026)36.5%29.5%13.5%ranked 2 of 10ranked 595 of 3,160
District heating (2026)6.3%5.6%5.6%ranked 4 of 10ranked 565 of 3,160

Where is 4578 Bibern SO?

Frequently asked questions

What is the population of 4578 Bibern SO (Buchegg)?

4578 Bibern SO has 256 residents in 2025. It covers 3.0 km², or 85 people per km².

Where is 4578 Bibern SO?

4578 Bibern SO (postcode area) is part of Buchegg, in Solothurn.

What is the value of “Dwellings” in 4578 Bibern SO?

Dwellings: 130 (2026), ranked 2,993 of 3,164 postcode areas in the country.

What is the value of “Residential buildings” in 4578 Bibern SO?

Residential buildings: 77 (2026), ranked 3,022 of 3,160 postcode areas in the country.