Location map: Bannwil
Municipality · Verwaltungskreis Oberaargau · Bern

Bannwil: population and statistics

Bannwil has a population of 674 (2025) across 4.8 km², or 141 people per km². It ranks 1,671 of 2,115 municipalities by population. Its population is falling: −3.6% between 2015 and 2025.

  • 674 residents
  • 4.8 km²
  • 141 people/km²
  • 442 m

Key points

Among the 335 municipalities in Bern, Bannwil ranks No. 234 by population.

Installed photovoltaic capacity per 1,000 inhabitants: 1,922 kW in Bannwil, compared with an average of 999.1 kW in Bern and 919.4 kW nationally.

Share of limited companies (AG, GmbH) among registered entities: 74.1% in Bannwil, compared with an average of 64.8% in Bern and 68.6% nationally.

A 1 kWp solar panel tilted at 38° generates about 1,173 kWh a year here.

Bannwil in numbers

Population
674
ranked 1,671 of 2,115
−3.6%over 10 years
2015–2025
Population density
141people/km²
ranked 1,246 of 1,806
Area
4.8km²
ranked 1,535 of 2,110
Elevation
442m
ranked 1,530 of 2,114
Installed photovoltaic capacity per 1,000 inhabitants
1,922kW
ranked 252 of 1,806
Share of limited companies (AG, GmbH) among registered entities
74.1%
ranked 239 of 1,808
Share of foreign nationals
9.9%
ranked 1,532 of 1,811
Dwellings in buildings built since 2001
14.7%
ranked 1,536 of 1,806

Where is Bannwil?

Population of Bannwil over time

660670680690700201520172019202120232025
Population, 2015–2025

Bannwil had 699 residents in 2015 and 674 in 2025.

YearPopulation
2020676
2021682
2022696
2023672
2024678
2025674

Did you know?

All indicators for Bannwil

Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.

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

Population

IndicatorBannwilBernNationalPosition?Rank
Share of people aged 65 and over (2025)23.6%22.7%20.7%ranked 441 of 1,811

Housing

IndicatorBannwilBernNationalPosition?Rank
Dwellings (2026)355599,6334,927,050ranked 1,689 of 2,108
Dwellings in buildings built before 1946 (2026)39.4%29.0%23.3%ranked 292 of 1,806
Dwellings in buildings built since 2001 (2026)14.7%17.2%25.3%ranked 1,536 of 1,806
Share of single-family houses among residential buildings (2026)74.8%54.1%69.5%ranked 550 of 1,806

Energy

IndicatorBannwilBernNationalPosition?Rank
Oil or gas heating systems (2026)49.0%60.7%53.5%ranked 1,067 of 1,806
Heat pumps as main heating (2026)22.7%14.3%13.7%ranked 449 of 1,806
Wood heating systems (2026)18.6%14.7%12.4%ranked 596 of 1,806
District heating (2026)0.5%5.7%1.4%ranked 1,222 of 1,806
Photovoltaic installations (2026)4240,598329,600ranked 1,665 of 2,108
Installed photovoltaic capacity per 1,000 inhabitants (2026)1,922 kW999.1 kW1,134 kWranked 252 of 1,806
Rooftop solar electricity potential (2026)10.1 GWh/year9,185 GWh/year64,783 GWh/yearranked 1,550 of 2,114
Rooftop solar potential per inhabitant (2026)15,030 kWh/inh.8,535 kWh/inh.9,356 kWh/inh.ranked 248 of 1,810

Economy

IndicatorBannwilBernNationalPosition?Rank
Establishments (2024)5180,971728,011ranked 1,683 of 2,112
Entities listed in the commercial register (2026)5467,347762,757ranked 1,546 of 2,115
Entities in the commercial register per 1,000 inhabitants (2026)80.162.664.9ranked 444 of 1,811
Share of limited companies (AG, GmbH) among registered entities (2026)74.1%64.8%65.7%ranked 239 of 1,808
Share of sole proprietorships among registered entities (2026)24.1%29.2%29.0%ranked 1,336 of 1,808

Employment

IndicatorBannwilBernNationalPosition?Rank
Jobs (2024)249677,4925,679,518ranked 1,515 of 2,111
Jobs per 1,000 inhabitants (2024)369.4629.6362.9ranked 879 of 1,810
Share of jobs in services (2024)64.3%70.3%63.6%ranked 868 of 1,804
Share of jobs in industry and construction (2024)20.1%22.5%24.2%ranked 1,097 of 1,776

Society

IndicatorBannwilBernNationalPosition?Rank
Share of foreign nationals (2025)9.9%18.6%18.9%ranked 1,532 of 1,811

Sunshine and temperatures: Bannwil

Annual solar output
1,173kWh
for 1 kWp tilted at 38°
Warmest month
19.6°C
July
Coldest month
1.1°C
January
Most productive month
138kWh
July

0100200300−10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly sunshine (kWh/m²)Average temperature (°C)

Frequently asked questions

What is the population of Bannwil?

Bannwil has 674 residents (2025), ranking 1,671 of 2,115 municipalities.

How big is Bannwil?

Bannwil covers 4.8 km², with a density of 141 people per km².

Is the population of Bannwil growing?

Between 2015 and 2025, the population of Bannwil went from 699 to 674, a change of −3.6%.

Where is Bannwil?

Bannwil is in Bern. It belongs to Verwaltungskreis Oberaargau (district). Latitude 47.237, longitude 7.732.

Installed photovoltaic capacity per 1,000 inhabitants: what is the figure for Bannwil?

In Bannwil, “Installed photovoltaic capacity per 1,000 inhabitants” stands at 1,922 kW (2026), ranking 252 of 1,806 municipalities; the national median is 1,134 kW.

Share of limited companies (AG, GmbH) among registered entities: what is the figure for Bannwil?

In Bannwil, “Share of limited companies (AG, GmbH) among registered entities” stands at 74.1% (2026), ranking 239 of 1,808 municipalities; the national median is 65.7%.

How much electricity does a solar panel produce in Bannwil?

In Bannwil, a 1 kWp south-facing system tilted at 38° produces about 1,173 kWh a year.

Which municipalities border Bannwil?

The nearest to Bannwil are Berken (2.0 km), Graben (2.3 km), Aarwangen (3.0 km), Schwarzhäusern (3.2 km), Walliswil bei Wangen (3.6 km).