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Municipal profile

Coat of arms of Zullwil

Zullwil

Canton: Solothurn (SO)

Civiora Index

Derived from official data

36/100

Below the median

National rank: 1’915 / 2’110

Taxes8/100
Premiums45/100
Electricity12/100
Housing93/100
PT service44/100

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

Median altitude662 m
Area3.7 km²
Postcode4233
FSO no.2622
DistrictBezirk Thierstein
Tax burden16.0 %Single, CHF 80’000 · 2026 more than SwitzerlandSwiss median: 13.1 %
Electricity price31.2 ct./kWhH4 · 2027 more than SwitzerlandSwiss median: 26.9 ct./kWh
Health insurance premiums624 CHF/monthAdult · 2027 more than SwitzerlandSwiss median: 599 CHF
Population704+7.2 % over 5 years (2020–2025) more than SwitzerlandSwiss median: +4.4 %
Vacancy rate2.98 %01.06.2026 more than SwitzerlandSwiss median: 0.83 %
Public transport stops2No 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 Zullwil pays 16.0% of their gross income in tax, or about CHF 12’780 a year. That is CHF 2’290 more than in the median Swiss municipality.

ZullwilSwiss median
Single, CHF 80’000 approx. 12’780 CHF/year2’290 CHF/year more
16.0 %
13.1 %
Single, CHF 120’000 approx. 23’580 CHF/year2’880 CHF/year more
19.6 %
17.2 %
Married couple, CHF 120’000 approx. 17’110 CHF/year3’650 CHF/year more
14.3 %
11.2 %
Family, 2 children, CHF 150’000 approx. 18’640 CHF/year3’740 CHF/year more
12.4 %
9.9 %
Retiree, CHF 80’000 approx. 15’380 CHF/year2’400 CHF/year more
19.2 %
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 Zullwil pays 31.20 ct. per kWh, or about CHF 1’400 a year. That is CHF 193 a year more than in the median Swiss municipality.

31.20 ct./kWh

more than SwitzerlandSwiss median: 26.91 ct./kWh

Tariff breakdown

Energy (the electricity itself) 13.45Grid (delivery to the meter) 13.78Levies and surcharge (public charges and levies) 3.97ct./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 Zullwil 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

Zullwil has 704 inhabitants at the end of 2025, 7.2% more than five years ago (Swiss median: +4.4%).

Population change 2010–2025

704 inhabitants

Density: 192 inhab./km² · 2025

+0.4 % vs previous year (2024–2025)

Age structure (2025)

0–19 years 22.6 %20–64 years 56.9 %65 and over 20.5 %

About 1 resident in 4 is under 20, and 1 in 5 is 65 or over. About 1 resident in 6 (17.6%) 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, 2.98% of homes in Zullwil were vacant, about 1 in 34 (Swiss median: 0.83%). The higher this rate, the easier it is to find a home.

Vacancy rate 2016–2026

Vacant dwellings1001.06.2026
Housing stock (2024)332

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

Zullwil has 2 public transport stops. On an ordinary Tuesday, 192 departures are scheduled across all stops, 32 of them after 8 pm.

Public transport stops2No rail stop (bus/other)
Departures on a typical Tuesday192of which evening (from 8 pm): 32 (17 %)
Departures on a typical Sunday14475 % of the typical Tuesday
Public transport stops / 1’0002.84Swiss 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

Zullwil’s territory is 9.6% built-up, 44.1% farmland and 46.0% forest (survey 2004/2009).

Built-up 9.6 %Farmland 44.1 %Forest 46.0 %Other (water, rock…) 0.3 %
Jobs128reference year 2018
Establishments38reference year 2018
Social assistance rate4.2 %reference year 2019

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