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Municipal profile

Coat of arms of Grengiols

Grengiols

Canton: Valais (VS)

Civiora Index

Derived from official data

72/100

Above the median

National rank: 271 / 2’110 · Top 13% nationally

Taxes63/100
Premiums90/100
Electricity51/100
Housing59/100
PT service92/100

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

Median altitude2’182 m
Area58.5 km²
Postcode3993
FSO no.6177
DistrictBezirk Raron
Tax burden12.2 %Single, CHF 80’000 · 2026 less than SwitzerlandSwiss median: 13.1 %
Electricity price26.9 ct./kWhH4 · 2027 in line with SwitzerlandSwiss median: 26.9 ct./kWh
Health insurance premiums537 CHF/monthAdult · 2027 less than SwitzerlandSwiss median: 599 CHF
Population409−5.1 % over 5 years (2020–2025) less than SwitzerlandSwiss median: +4.4 %
Vacancy rate1.00 %01.06.2026 more than SwitzerlandSwiss median: 0.83 %
Public transport stops7At 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 Grengiols pays 12.2% of their gross income in tax, or about CHF 9’740 a year. That is CHF 740 less than in the median Swiss municipality.

GrengiolsSwiss median
Single, CHF 80’000 approx. 9’740 CHF/year740 CHF/year less
12.2 %
13.1 %
Single, CHF 120’000 approx. 19’860 CHF/year840 CHF/year less
16.6 %
17.2 %
Married couple, CHF 120’000 approx. 12’130 CHF/year1’330 CHF/year less
10.1 %
11.2 %
Family, 2 children, CHF 150’000 approx. 11’720 CHF/year3’200 CHF/year less
7.8 %
9.9 %
Retiree, CHF 80’000 approx. 12’330 CHF/year660 CHF/year less
15.4 %
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 Grengiols pays 26.91 ct. per kWh, or about CHF 1’210 a year. That is close to the median Swiss municipality.

26.91 ct./kWh

in line with SwitzerlandSwiss median: 26.91 ct./kWh

Tariff breakdown

Energy (the electricity itself) 12.09Grid (delivery to the meter) 10.49Levies and surcharge (public charges and levies) 4.33ct./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 Grengiols pays a median CHF 537 a month for basic health insurance, or about CHF 6’450 a year (CHF 300 deductible, accident cover included). That is CHF 62 a month less than the Swiss median (CHF 599).

537 CHF/month

less than SwitzerlandSwiss median: 599 CHF

Median monthly premium 2027, adult (26+), CHF 300 deductible, with accident, standard model: median of the 26 offers in premium region VS-2 (Civiora calculation on FOPH data).

Official FOPH average premiums 2027 (all deductibles and models)

Adult417.10 CHF/monthapprox. 5’010 CHF/year
19–25 years286.60 CHF/monthapprox. 3’440 CHF/year
Child104.40 CHF/monthapprox. 1’250 CHF/year

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

Population and demographics

Official

Grengiols has 409 inhabitants at the end of 2025, 5.1% fewer than five years ago (Swiss median: +4.4%).

Population change 2010–2025

409 inhabitants

Density: 7 inhab./km² · 2025

−1.9 % vs previous year (2024–2025)

Age structure (2025)

0–19 years 15.6 %20–64 years 61.2 %65 and over 23.2 %

About 1 resident in 6 is under 20, and 1 in 4 is 65 or over. About 1 resident in 16 (6.4%) 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, 1.00% of homes in Grengiols were vacant, about 1 in 100 (Swiss median: 0.83%). The higher this rate, the easier it is to find a home.

Vacancy rate 2016–2026

Vacant dwellings501.06.2026
Housing stock (2024)495

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

Grengiols has 7 public transport stops. On an ordinary Tuesday, 248 departures are scheduled across all stops, 31 of them after 8 pm.

Public transport stops7At least one rail stop
Departures on a typical Tuesday248of which evening (from 8 pm): 31 (12 %)
Departures on a typical Sunday256103 % of the typical Tuesday
Public transport stops / 1’00017.11Swiss 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

Grengiols’s territory is 0.9% built-up, 19.7% farmland and 27.9% forest (survey 2004/2009).

Built-up 0.9 %Farmland 19.7 %Forest 27.9 %Other (water, rock…) 51.5 %
Jobs156reference year 2018
Establishments49reference year 2018

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

Municipalities of comparable size

Orges VD409Croy VD408Chigny VD410Isone TI407