Location map: Chamoson
Municipality · District de Conthey · Valais

Chamoson: population and statistics

Chamoson has a population of 4,486 (2025) across 32.5 km², or 138 people per km². It ranks 500 of 2,115 municipalities by population. Its population is growing: +25.1% between 2015 and 2025.

  • 4,486 residents
  • 32.5 km²
  • 138 people/km²
  • 719 m

Key points

Among the 122 municipalities in Valais, Chamoson ranks No. 25 by population.

Share of sole proprietorships among registered entities: 18.7% in Chamoson, compared with an average of 20.9% in Valais and 26.1% nationally.

Oil or gas heating systems: 31.1% in Chamoson, compared with an average of 49.8% in Valais and 61.7% nationally.

A 1 kWp solar panel tilted at 41° generates about 1,390 kWh a year here.

Chamoson in numbers

Population
4,486
ranked 500 of 2,115
+25.1%over 10 years
2015–2025
Population density
138people/km²
ranked 1,252 of 1,806
Area
32.5km²
ranked 269 of 2,110
Elevation
719m
ranked 487 of 2,114
Share of sole proprietorships among registered entities
18.7%
ranked 1,651 of 1,808
Oil or gas heating systems
31.1%
ranked 1,615 of 1,806
Share of single-family houses among residential buildings
80.2%
ranked 213 of 1,806
Share of jobs in services
48.3%
ranked 1,415 of 1,804

Where is Chamoson?

Population of Chamoson over time

3,5003,7504,0004,2504,500201520172019202120232025
Population, 2015–2025

Chamoson had 3,587 residents in 2015 and 4,486 in 2025.

YearPopulation
20203,986
20214,053
20224,178
20234,291
20244,389
20254,486

Did you know?

All indicators for Chamoson

Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.

ChamosonNational medianHover over or tap a bar to see what it shows.

Population

IndicatorChamosonValaisNationalPosition?Rank
Share of people aged 65 and over (2025)20.6%21.2%20.7%ranked 921 of 1,811

Housing

IndicatorChamosonValaisNationalPosition?Rank
Dwellings (2026)2,923284,3294,927,050ranked 385 of 2,108
Dwellings in buildings built before 1946 (2026)20.1%15.6%23.3%ranked 1,053 of 1,806
Dwellings in buildings built since 2001 (2026)37.1%28.0%25.3%ranked 251 of 1,806
Share of single-family houses among residential buildings (2026)80.2%63.4%69.5%ranked 213 of 1,806

Energy

IndicatorChamosonValaisNationalPosition?Rank
Oil or gas heating systems (2026)31.1%49.8%53.5%ranked 1,615 of 1,806
Heat pumps as main heating (2026)11.3%12.0%13.7%ranked 1,105 of 1,806
Wood heating systems (2026)13.2%13.0%12.4%ranked 862 of 1,806
District heating (2026)1.0%3.4%1.4%ranked 1,020 of 1,806
Photovoltaic installations (2026)33818,204329,600ranked 222 of 2,108
Installed photovoltaic capacity per 1,000 inhabitants (2026)1,093 kW1,004 kW1,134 kWranked 964 of 1,806
Rooftop solar electricity potential (2026)43.5 GWh/year3,880 GWh/year64,783 GWh/yearranked 420 of 2,114
Rooftop solar potential per inhabitant (2026)9,690 kWh/inh.10,316 kWh/inh.9,356 kWh/inh.ranked 846 of 1,810

Economy

IndicatorChamosonValaisNationalPosition?Rank
Establishments (2024)34632,476728,011ranked 427 of 2,112
Entities listed in the commercial register (2026)38035,035762,757ranked 394 of 2,115
Entities in the commercial register per 1,000 inhabitants (2026)84.793.164.9ranked 360 of 1,811
Share of limited companies (AG, GmbH) among registered entities (2026)75.5%72.6%65.7%ranked 168 of 1,808
Share of sole proprietorships among registered entities (2026)18.7%20.9%29.0%ranked 1,651 of 1,808

Employment

IndicatorChamosonValaisNationalPosition?Rank
Jobs (2024)1,334202,1165,679,518ranked 663 of 2,111
Jobs per 1,000 inhabitants (2024)297.4537.6362.9ranked 1,175 of 1,810
Share of jobs in services (2024)48.3%71.1%63.6%ranked 1,415 of 1,804
Share of jobs in industry and construction (2024)27.1%21.0%24.2%ranked 751 of 1,776

Society

IndicatorChamosonValaisNationalPosition?Rank
Share of foreign nationals (2025)18.7%26.5%18.9%ranked 922 of 1,811

Sunshine and temperatures: Chamoson

Annual solar output
1,390kWh
for 1 kWp tilted at 41°
Warmest month
14.2°C
July
Coldest month
−7.3°C
January
Most productive month
148kWh
July

0100200300−20°−10°0°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Monthly sunshine (kWh/m²)Average temperature (°C)

Frequently asked questions

What is the population of Chamoson?

Chamoson has 4,486 residents (2025), ranking 500 of 2,115 municipalities.

How big is Chamoson?

Chamoson covers 32.5 km², with a density of 138 people per km².

Is the population of Chamoson growing?

Between 2015 and 2025, the population of Chamoson went from 3,587 to 4,486, a change of +25.1%.

Where is Chamoson?

Chamoson is in Valais. It belongs to District de Conthey (district). Latitude 46.200, longitude 7.217.

Share of sole proprietorships among registered entities: what is the figure for Chamoson?

In Chamoson, “Share of sole proprietorships among registered entities” stands at 18.7% (2026), ranking 1,651 of 1,808 municipalities; the national median is 29.0%.

Oil or gas heating systems: what is the figure for Chamoson?

In Chamoson, “Oil or gas heating systems” stands at 31.1% (2026), ranking 1,615 of 1,806 municipalities; the national median is 53.5%.

How much electricity does a solar panel produce in Chamoson?

In Chamoson, a 1 kWp south-facing system tilted at 41° produces about 1,390 kWh a year.

Which municipalities border Chamoson?

The nearest to Chamoson are Leytron (2.3 km), Ardon (2.6 km), Riddes (3.7 km), Isérables (4.5 km), Saillon (4.5 km).