What is the postal code of Sion?

Sion has 9 postal codes: 1950, 1958, 1962, 1967, 1971, 1991, 1992, 1993, 1994.

What is the tax rate in Sion?

The municipal tax multiplier of Sion is 110% (2026); canton VS levies 100%.

How much tax do you pay in Sion?

A single person without children pays about 14'257 CHF income tax in Sion on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 122 in canton VS. Source: ESTV (2026).

How many residents does Sion have?

Sion has 37'844 residents (2025).

How many foreign residents live in Sion?

Sion has 11'696 foreign residents, a share of 30.91% (2025).

Switzerland · Canton VS · District de Sion

Sion

1950–1994

VS CANTON1950 1958 1962 1967+5 PLZ

Relief © swisstopo · TINITALY · geoland.at · LGL · IGN · swissTLM3D · swissTLMRegio

Demographics

BFS · 2025

Women

19'416 51.3%

Men

18'428 48.7%

Children & youth (0–19)

7'030 18.6%

Swiss citizens

26'148 69.1%

Foreign residents

11'696 30.9%

Population density

1'086 pop./km²

0–19 · 7'030 · 18.6%20–64 · 23'082 · 61.0%65+ · 7'732 · 20.4%

Foreign residents 30.9%0%64.0%

Population change 2025: +690 (+1.9%) · 301 births · 320 deaths · net migration +729

STATPOP 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026 · swisstopo, retrieved 24.09.2026 · BEVNAT (Statistik der natürlichen Bevölkerungsbewegung) 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026

Vote results for Sion

BFS

27.09.2026Popular Initiative 'For food security – through increased sustainable domestic production, more plant-based food and clean drinking water (Food Initiative)'Federal● Rejected · 27.5% YesDistrict District de Sion: 28.7% Yes

30.1% YesNo 69.9%

27.09.2026Popular Initiative 'Safeguard Swiss neutrality (Neutrality Initiative)'Federal● Rejected · 29.8% YesDistrict District de Sion: 30.4% Yes

28.9% YesNo 71.1%

14.06.2026Amendment to the Civilian Service ActFederal● Accepted · 52.5% YesDistrict District de Sion: 53.5% Yes

51.8% YesNo 48.2%

14.06.2026Popular initiative: 'No to Switzerland of 10 million! (Sustainability Initiative)'Federal● Rejected · 45.2% YesDistrict District de Sion: 38.8% Yes

36.4% YesNo 63.6%

08.03.2026Federal Act on Individual TaxationFederal● Accepted · 54.3% YesDistrict District de Sion: 55.8% Yes

56.2% YesNo 43.8%

08.03.2026Popular Initiative ‘For a fair energy and climate policy: Investing for prosperity, jobs and the environment (Climate Fund Initiative)’Federal● Rejected · 29.3% YesDistrict District de Sion: 28.6% Yes

30.6% YesNo 69.4%

08.03.2026Popular Initiative ‘200 francs is enough! (SBC Initiative)’Federal● Rejected · 38.1% YesDistrict District de Sion: 38.4% Yes

36.3% YesNo 63.7%

08.03.2026Cash Initiative and Counter-Proposal: Deciding QuestionFederal● Rejected · 37.4% YesDistrict District de Sion: 48.9% Yes

48.7% YesNo 51.3%

08.03.2026Federal decree on Swiss currency and cash supply (counter-proposal to Cash Initiative)Federal● Accepted · 73.4% YesDistrict District de Sion: 65.4% Yes

66.1% YesNo 33.9%

08.03.2026Popular Initiative 'Yes to an independent and free Swiss currency with coins or banknotes (Cash is freedom)'Federal● Rejected · 45.6% YesDistrict District de Sion: 58.8% Yes

58.3% YesNo 41.7%

All federal votes →

Popular votes (sd-t-17-02) 2026 · Federal Statistical Office (FSO), retrieved 04.10.2026

Politics

National Council election 2023

Mitte25.6% · strongest party

Mitte25.6%

SVP20.9%

SP20.6%

GRÜNE15.3%

FDP13.6%

sd-t-17.02-NRW2023 2023 · Federal Statistical Office (FSO), retrieved 25.09.2026

Taxes 2026

ESTV

Municipal tax multiplier110%

Cantonal tax multiplier100%

110%VS range 100%145%

Tax rank 18 of 122 in canton Valais

Tax burden

Single, 100'000 CHF gross income

14'257 CHF(14.3%)

Rank 16 of 122 in the canton · 875 of 2110 in Switzerland

Median canton 15'413 CHF · median Switzerland 15'290 CHF

Cheapest Bister VS 13'690 CHF · most expensive Grächen 17'302 CHF

Income tax as % of gross income

100'000 CHF:14'257 CHF(~14.3%)

SionCanton range ValaisSwitzerland median

Show data table

Gross income	Sion	Valais	Switzerland median
40'000	4.4%	4.2–5.8%	5.4%
50'000	7.8%	7.5–10.3%	7.8%
60'000	9.2%	8.8–12%	10.5%
70'000	10.6%	10.2–13.5%	11.9%
80'000	11.9%	11.4–14.9%	13.1%
90'000	12.9%	12.4–16%	14.1%
100'000	14.3%	13.7–17.3%	15.3%
110'000	15.4%	14.8–18.5%	16.3%
120'000	16.5%	15.9–19.6%	17.2%
130'000	17.6%	17–20.8%	18.1%
140'000	18.8%	18.1–22%	19%
150'000	19.8%	19.1–23%	19.7%
175'000	22.5%	21.8–25.7%	21.6%
200'000	24.6%	23.9–27.7%	23.2%
225'000	25.9%	25.1–28.9%	24.6%
250'000	26.8%	26–30%	25.8%
275'000	27.6%	26.8–30.8%	26.8%
300'000	28.2%	27.4–31.6%	27.4%

2026 · Federal Tax Administration (FTA), retrieved 24.09.2026

Climate

MeteoSwiss 1 km grid · 1991–2020

Annual mean temperature 1991–202010.4 °C

Precipitation 1991–2020604 mm

10.4 °CCH range -5.5°14°

1991–2020 · MeteoSwiss, retrieved 28.08.2026

Terrain

swisstopo · DHM 40 m

Highest point

2'174 m

Mean elevation

715 m

Relief

1'697 m

Mean slope

12.4°

Flat share

46.4%

South-facing

11.3%

Above 2000 m

1.0%

Relief 1'697 m0 m3'847 m

Terrain figures cover the whole municipal territory (swisstopo swissALTIRegio) — not the settlement point. Slope and south-facing share are resolution-dependent and measured at 40 m.

swissALTIRegio 2026 · swisstopo, retrieved 28.08.2026

Solar potential

BFE

Roof potential

263 GWh/yr

Roofs + façades

356.7 GWh/yr

≈ households powered

58'400

Per inhabitant

6'949 kWh/yr

263 GWh/yr01'133 GWh/yr

BFE solar factsheet ↗

Modelled roof and façade potential from the BFE solar model — the electricity these surfaces could produce, not installed capacity or what the municipality actually generates today. The household figure divides the roof potential by 4'500 kWh per year, ElCom’s reference household (consumption profile H4, a 5-room apartment).

Swiss Federal Office of Energy (SFOE), retrieved 24.09.2026

Electricity

ElCom · 2027

Tariff H4

26.56 Rp./kWh

Energy

13 Rp./kWh

Grid usage

8.33 Rp./kWh

Levies + grid surcharge

3.47 Rp./kWh

26.56 Rp./kWh10.5645.88

Canton median 26.56 Rp./kWhSwiss median 26.53 Rp./kWh

Network operator OIKEN SA

ElCom tariff comparison ↗

How this is measured

Total household electricity price for ElCom consumption profile H4 — 4'500 kWh a year, a 5-room flat with electric stove and tumble dryer — standard product, excluding VAT, for the tariff year shown. Energy, grid usage, levies to public bodies and the federal grid surcharge are included. Canton and Swiss medians are ElCom's own published figures.

2027 · Federal Electricity Commission (ElCom), retrieved 12.09.2026

Health-insurance premiums

BAG · 2024

Premium regionRegion 1

Standard model, deductible 300583 CHF/mo

Ø premium in canton Valais391 CHF/mo

Estimate Switzerland 2026465.3 CHF/mo

Compare health insurers in Sion →Canton Valais →Premiums explained →

Premiums are set per canton and premium region. This area lies in premium region 1 of canton Valais. Shown is the average adult premium paid across the whole canton Valais (2024, BAG) — a region-specific average is not available in the cantonal data.

2024 · Federal Office of Public Health (FOPH), retrieved 12.09.2026

Housing

BFS · ARE

Vacancy rate

0.22 %

Second homes

12.6 %

Avg. rooms

3.3

Dwellings

21'116

Built before 194610.6%

Built since 200131.4%

0.22 %0 %12 %

Vacancy rate from the BFS vacant-dwelling count (2025); building age and room count from the Buildings and Dwellings Statistics (2024). The average room count treats the ‘6 rooms or more’ class as 6, so it is a slight lower bound. The vacancy rate is volatile for small municipalities.

Buildings and Dwellings Statistics 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Vacant dwellings survey 2025 · Federal Statistical Office (FSO), retrieved 24.09.2026 · Dwelling inventory and second-home share 2026 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Economy

BFS · 2024

Jobs

39'132

Workplaces

4'334

Services share

83 %

Jobs by sector: Primary 685 (1.8%) · Secondary 5'978 (15.3%) · Tertiary 32'469 (83.0%)

STATENT (Statistik der Unternehmensstruktur) 2024 · Federal Statistical Office (FSO), retrieved 24.09.2026

Agriculture

BFS · 2025

Farms

Organic share

17.9 %

Farmland

1'095 ha

Landwirtschaftliche Strukturerhebung 2025 · Federal Statistical Office (FSO), retrieved 19.09.2026

Accessibility

ARE · NPVM

Major centrePT 81 min · Car 70 min

AgglomerationPT 13 min · Car 7 min

Remoteness 113/122 in canton

National Passenger Transport Model (NPVM) 2025 · Federal Office for Spatial Development (ARE), retrieved 24.09.2026

Municipality

Wikidata · CC0

BFS municipality number6266

Head of governmentPhilippe Varone · FDP.Die Liberalen

Websitesion.ch ↗

DistrictDistrict de Sion

Wikidata · continuously updated, retrieved 24.09.2026

Where Sion ranks

Largest municipalities37'844 #1 VS · #20 CH Growing municipalities1.9% #32 VS · #396 CH Shrinking municipalities1.9% #91 VS · #1715 CH Jobs per resident1.03 #4 VS · #86 CH Families & children18.6% #55 VS · #1566 CH Age structure20.4% #86 VS · #1170 CH Women share51.3% #11 VS · #299 CH Foreign residents30.9% #22 VS · #277 CH Population density1'086/km² #1 VS · #198 CH Tax burden14'257 #21 VS · #880 CH Taxes110% #18 VS Warmest municipalities10.4 °C #6 VS · #265 CH Sunniest municipalities56.9% #9 VS · #11 CH Rainiest municipalities604 mm #113 VS · #2092 CH Voter turnout48.8% #102 VS · #1878 CH Against Switzerland16.7% #62 VS · #816 CH Aligned with Switzerland83.3% #12 VS · #707 CH SVP strongholds20.9% #91 VS · #1747 CH SP strongholds20.6% #14 VS · #429 CH Centre strongholds25.6% #103 VS · #344 CH FDP strongholds13.6% #51 VS · #980 CH GLP strongholds3.2% #11 VS · #1557 CH Green strongholds15.3% #8 VS · #125 CH Largest by area34.9 km² #47 VS · #264 CH Highest municipalities515 m #103 VS · #1147 CH Second homes12.6% #105 VS · #826 CH Organic farming17.9% #60 VS · #737 CH Best-connected municipalities81 min #11 VS · #1376 CH Remotest municipalities81 min #113 VS · #753 CH Highest peaks2'174 m #102 VS · #315 CH Highest-lying municipalities715 m #114 VS · #729 CH Greatest vertical range1'697 m #102 VS · #279 CH Steepest municipalities12.4° #121 VS · #742 CH Solar potential263 GWh #1 VS · #10 CH Solar potential per capita6'949 kWh #118 VS · #1686 CH Cheapest electricity26.56 Rp./kWh #85 VS · #1060 CH Most expensive electricity26.56 Rp./kWh #59 VS · #1068 CH

Postal codes (9)

swisstopo

Pont-de-la-Morge (Sion)

Localities

swisstopo · 16

Aproz (Nendaz)1994 Arvillard (Salins)1991 Bramois1967 Champlan (Grimisuat)1971 Crête-à-l'Oeil (Les Agettes)1992 La Vernaz (Les Agettes)1992 Les Agettes1992 Les Mayens-de-Sion1992 Misériez (Salins)1991 Pont-de-la-Morge (Sion)1962 Pravidondaz (Salins)1991 Salins1991 Sion1950 Turin (Salins)1991 Uvrier1958 Veysonnaz1993

Nearby municipalities

swisstopo

Frequently asked questions

What is the postal code of Sion?: Sion has 9 postal codes: 1950, 1958, 1962, 1967, 1971, 1991, 1992, 1993, 1994.
What is the tax rate in Sion?: The municipal tax multiplier of Sion is 110% (2026); canton VS levies 100%.
How much tax do you pay in Sion?: A single person without children pays about 14'257 CHF income tax in Sion on 100'000 CHF gross income (federal, cantonal, municipal), rank 16 of 122 in canton VS. Source: ESTV (2026).
How many residents does Sion have?: Sion has 37'844 residents (2025).
How many foreign residents live in Sion?: Sion has 11'696 foreign residents, a share of 30.91% (2025).

Map

OpenStreetMap