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Municipal profile

Coat of arms of Oensingen

Oensingen

Canton: Solothurn (SO)

Civiora Index

Derived from official data

56/100

Above the median

National rank: 941 / 2’110 · Top 45% nationally

Taxes35/100
Premiums45/100
Electricity71/100
Housing65/100
PT service78/100

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

Median altitude461 m
Area12.1 km²
Postcode4702
FSO no.2407
DistrictBezirk Gäu
Tax burden14.5 %Single, CHF 80’000 · 2026 more than SwitzerlandSwiss median: 13.1 %
Electricity price25.6 ct./kWhH4 · 2027 less than SwitzerlandSwiss median: 26.9 ct./kWh
Health insurance premiums624 CHF/monthAdult · 2027 more than SwitzerlandSwiss median: 599 CHF
Population6’766+7.8 % over 5 years (2020–2025) more than SwitzerlandSwiss median: +4.4 %
Vacancy rate1.13 %01.06.2026 more than SwitzerlandSwiss median: 0.83 %
Public transport stops17At least one rail stop

Taxes: tax burden by scenario

Tax burden ranking →Official

On a salary of CHF 80’000 a year, a single person in Oensingen pays 14.5% of their gross income in tax, or about CHF 11’630 a year. That is CHF 1’140 more than in the median Swiss municipality.

OensingenSwiss median
Single, CHF 80’000 approx. 11’630 CHF/year1’140 CHF/year more
14.5 %
13.1 %
Single, CHF 120’000 approx. 21’590 CHF/year890 CHF/year more
18.0 %
17.2 %
Married couple, CHF 120’000 approx. 15’610 CHF/year2’150 CHF/year more
13.0 %
11.2 %
Family, 2 children, CHF 150’000 approx. 17’000 CHF/year2’080 CHF/year more
11.3 %
9.9 %
Retiree, CHF 80’000 approx. 14’020 CHF/year1’030 CHF/year more
17.5 %
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 Oensingen pays 25.59 ct. per kWh, or about CHF 1’150 a year. That is CHF 59 a year less than in the median Swiss municipality.

25.59 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) 5.71ct./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 Oensingen 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

Oensingen has 6’766 inhabitants at the end of 2025, 7.8% more than five years ago (Swiss median: +4.4%).

Population change 2010–2025

6’766 inhabitants

Density: 559 inhab./km² · 2025

−0.7 % vs previous year (2024–2025)

Age structure (2025)

0–19 years 20.9 %20–64 years 62.1 %65 and over 17.0 %

About 1 resident in 5 is under 20, and 1 in 6 is 65 or over. About 4 in 10 residents (40.3%) hold 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, 1.13% of homes in Oensingen were vacant, about 1 in 88 (Swiss median: 0.83%). The higher this rate, the easier it is to find a home.

Vacancy rate 2016–2026

Vacant dwellings3701.06.2026
Housing stock (2024)3’250

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

Oensingen has 17 public transport stops. On an ordinary Tuesday, 1’137 departures are scheduled across all stops, 166 of them after 8 pm.

Public transport stops17At least one rail stop
Departures on a typical Tuesday1’137of which evening (from 8 pm): 166 (15 %)
Departures on a typical Sunday70562 % of the typical Tuesday
Public transport stops / 1’0002.51Swiss 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

Oensingen’s territory is 22.0% built-up, 39.6% farmland and 37.5% forest (survey 2004/2009).

Built-up 22.0 %Farmland 39.6 %Forest 37.5 %Other (water, rock…) 0.9 %
Jobs5’350reference year 2018
Establishments442reference year 2018
Social assistance rate3.9 %reference year 2019

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