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Municipal profile

Coat of arms of Bolken

Bolken

Canton: Solothurn (SO)

Civiora Index

Derived from official data

34/100

Below the median

National rank: 1’987 / 2’110

Taxes5/100
Premiums45/100
Electricity78/100
Housing29/100
PT service35/100

Confidence level: high · v1.1.0 · Civiora Index computed from official public data. Proprietary, non-official index. Understand the index

Median altitude481 m
Area2.1 km²
Postcode4556
FSO no.2514
DistrictBezirk Wasseramt
Tax burden16.3 %Single, CHF 80’000 · 2026 more than SwitzerlandSwiss median: 13.1 %
Electricity price25.2 ct./kWhH4 · 2027 less than SwitzerlandSwiss median: 26.9 ct./kWh
Health insurance premiums624 CHF/monthAdult · 2027 more than SwitzerlandSwiss median: 599 CHF
Population579−1.9 % over 5 years (2020–2025) less than SwitzerlandSwiss median: +4.4 %
Vacancy rate0.39 %01.06.2026 less than SwitzerlandSwiss median: 0.83 %
Public transport stops1No rail stop (bus/other)

Taxes: tax burden by scenario

Tax burden ranking →Official

On a salary of CHF 80’000 a year, a single person in Bolken pays 16.3% of their gross income in tax, or about CHF 13’070 a year. That is CHF 2’580 more than in the median Swiss municipality.

BolkenSwiss median
Single, CHF 80’000 approx. 13’070 CHF/year2’580 CHF/year more
16.3 %
13.1 %
Single, CHF 120’000 approx. 24’080 CHF/year3’380 CHF/year more
20.1 %
17.2 %
Married couple, CHF 120’000 approx. 17’500 CHF/year4’030 CHF/year more
14.6 %
11.2 %
Family, 2 children, CHF 150’000 approx. 19’070 CHF/year4’160 CHF/year more
12.7 %
9.9 %
Retiree, CHF 80’000 approx. 15’730 CHF/year2’740 CHF/year more
19.7 %
16.2 %

2026 tax burden in % of gross income (federal, cantonal and communal taxes; earned income, no wealth, no church tax). Calculation FTA, Swiss tax calculator.

Federal Tax Administration (FTA)Tax burden 2026: Swiss tax calculator (model cases)View source

Electricity

2027 tariff ranking →Official

A typical household (profile H4, 4’500 kWh a year) in Bolken pays 25.19 ct. per kWh, or about CHF 1’130 a year. That is CHF 77 a year less than in the median Swiss municipality.

25.19 ct./kWh

less than SwitzerlandSwiss median: 26.91 ct./kWh

Tariff breakdown

Energy (the electricity itself) 7.97Grid (delivery to the meter) 11.91Levies and surcharge (public charges and levies) 5.31ct./kWh

Federal Electricity Commission (ElCom)Electricity tariffs 2027, profile H4, standard productView source

Health insurance premiums

2027 premium ranking →Derived from official data

An adult in Bolken pays a median CHF 624 a month for basic health insurance, or about CHF 7’490 a year (CHF 300 deductible, accident cover included). That is CHF 25 a month more than the Swiss median (CHF 599).

624 CHF/month

more than SwitzerlandSwiss median: 599 CHF

Median monthly premium 2027, adult (26+), CHF 300 deductible, with accident, standard model: median of the 25 offers in premium region SO-0 (Civiora calculation on FOPH data).

Official FOPH average premiums 2027 (all deductibles and models)

Adult493.50 CHF/monthapprox. 5’920 CHF/year
19–25 years332.40 CHF/monthapprox. 3’990 CHF/year
Child124.60 CHF/monthapprox. 1’500 CHF/year

Federal Office of Public Health (FOPH)Compulsory health insurance premiums 2027 (priminfo)View source

Population and demographics

Official

Bolken has 579 inhabitants at the end of 2025, 1.9% fewer than five years ago (Swiss median: +4.4%).

Population change 2010–2025

579 inhabitants

Density: 273 inhab./km² · 2025

+0.3 % vs previous year (2024–2025)

Age structure (2025)

0–19 years 19.5 %20–64 years 60.5 %65 and over 20.0 %

About 1 resident in 5 is under 20, and 1 in 5 is 65 or over. About 1 resident in 13 (7.8%) holds a foreign nationality.

Federal Statistical Office (FSO)STATPOP: permanent resident population (STAT-TAB), status 31.12.2025View source

Housing

Vacancy rate ranking →Official

On 1 June 2026, 0.39% of homes in Bolken were vacant, about 1 in 256 (Swiss median: 0.83%). The higher this rate, the easier it is to find a home.

Vacancy rate 2016–2026

Vacant dwellings101.06.2026
Housing stock (2024)259

Federal Statistical Office (FSO)Vacant dwellings count, 1 June 2026View source

Federal Statistical Office (FSO)Buildings and dwellings statistics (GWS): housing stock 2024View source

Public transport

Derived from official data

Bolken has 1 public transport stop. On an ordinary Tuesday, 87 departures are scheduled across all stops, 14 of them after 8 pm.

Public transport stops1No rail stop (bus/other)
Departures on a typical Tuesday87of which evening (from 8 pm): 14 (16 %)
Departures on a typical Sunday4046 % of the typical Tuesday
Public transport stops / 1’0001.73Swiss median: 3.33

Departures counted in the official 2026 timetable (GTFS) on typical days: Tuesday 08.09.2026 and Sunday 13.09.2026. Every call at every stop in the municipality counts as one departure. Civiora calculation.

opentransportdata.swiss (ATLAS, SBB on behalf of the Confederation)Public transport service points, status 04.08.2026View source

opentransportdata.swiss (official GTFS timetable)2026 timetable (GTFS, 01.08.2026 edition): typical daysView source

Territory and local economy

Official

Bolken’s territory is 11.7% built-up, 64.8% farmland and 21.6% forest (survey 2004/2009).

Built-up 11.7 %Farmland 64.8 %Forest 21.6 %Other (water, rock…) 1.9 %
Social assistance rate1.0 %reference year 2019

Federal Statistical Office (FSO)Regional portraits 2021: key figures of communesView source