Blenio: population and statistics
Blenio has a population of 1,752 (2025) across 202.0 km², or 8.7 people per km². It ranks 1,056 of 2,115 municipalities by population. Its population is falling: −1.7% between 2015 and 2025.
- 1,752 residents
- 202.0 km²
- 9 people/km²
- 1,143 m
Key points
Among the 100 municipalities in Ticino, Blenio ranks No. 53 by population.
Share of people aged 65 and over: 32.5% in Blenio, compared with an average of 24.3% in Ticino and 19.8% nationally.
Oil or gas heating systems: 18.1% in Blenio, compared with an average of 59.8% in Ticino and 61.7% nationally.
A 1 kWp solar panel tilted at 41° generates about 1,208 kWh a year here.
Blenio in numbers
Where is Blenio?
Population of Blenio over time
Blenio had 1,783 residents in 2015 and 1,752 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,770 |
| 2021 | 1,752 |
| 2022 | 1,745 |
| 2023 | 1,706 |
| 2024 | 1,747 |
| 2025 | 1,752 |
Did you know?
- “Share of people aged 65 and over”: higher than in 99% of municipalities.
- “Oil or gas heating systems”: lower than in 98% of municipalities.
- “Dwellings in buildings built since 2001”: lower than in 97% of municipalities.
- Its area is roughly equal to 28,291 football pitches.
- Its population density is 26.7 times lower than the national average.
- The nearest municipality is Acquarossa, 8.3 km away.
- The nearest more populous municipality is Faido (2,706 residents), 13 km away.
All indicators for Blenio
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.
Population
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 32.5% | 24.3% | 20.7% | ranked 24 of 1,811 |
Housing
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 2,544 | 260,627 | 4,927,050 | ranked 465 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 43.4% | 20.3% | 23.3% | ranked 200 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 6.7% | 20.4% | 25.3% | ranked 1,759 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 84.2% | 62.1% | 69.5% | ranked 79 of 1,806 |
Energy
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 18.1% | 59.8% | 53.5% | ranked 1,773 of 1,806 | |
| Heat pumps as main heating (2026) | 4.4% | 12.4% | 13.7% | ranked 1,697 of 1,806 | |
| Wood heating systems (2026) | 45.8% | 11.5% | 12.4% | ranked 89 of 1,806 | |
| District heating (2026) | 3.3% | 1.2% | 1.4% | ranked 608 of 1,806 | |
| Photovoltaic installations (2026) | 129 | 16,017 | 329,600 | ranked 868 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,214 kW | 915.9 kW | 1,134 kW | ranked 817 of 1,806 | |
| Rooftop solar electricity potential (2026) | 36.8 GWh/year | 3,370 GWh/year | 64,783 GWh/year | ranked 528 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 21,027 kWh/inh. | 9,438 kWh/inh. | 9,356 kWh/inh. | ranked 75 of 1,810 |
Economy
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 174 | 40,256 | 728,011 | ranked 870 of 2,112 | |
| Entities listed in the commercial register (2026) | 139 | 42,118 | 762,757 | ranked 962 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 79.3 | 117.1 | 64.9 | ranked 463 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 50.4% | 72.1% | 65.7% | ranked 1,720 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 37.4% | 23.0% | 29.0% | ranked 263 of 1,808 |
Employment
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 609 | 249,351 | 5,679,518 | ranked 1,062 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 347.6 | 698.3 | 362.9 | ranked 957 of 1,810 | |
| Share of jobs in services (2024) | 53.2% | 78.3% | 63.6% | ranked 1,259 of 1,804 | |
| Share of jobs in industry and construction (2024) | 27.3% | 20.2% | 24.2% | ranked 748 of 1,776 |
Society
| Indicator | Blenio | Ticino | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 6.7% | 29.8% | 18.9% | ranked 1,707 of 1,811 |
Sunshine and temperatures: Blenio
Frequently asked questions
What is the population of Blenio?
Blenio has 1,752 residents (2025), ranking 1,056 of 2,115 municipalities.
How big is Blenio?
Blenio covers 202.0 km², with a density of 9 people per km².
Is the population of Blenio growing?
Between 2015 and 2025, the population of Blenio went from 1,783 to 1,752, a change of −1.7%.
Where is Blenio?
Blenio is in Ticino. It belongs to Distretto di Blenio (district). Latitude 46.533, longitude 8.950.
Share of people aged 65 and over: what is the figure for Blenio?
In Blenio, “Share of people aged 65 and over” stands at 32.5% (2025), ranking 24 of 1,811 municipalities; the national median is 20.7%.
Oil or gas heating systems: what is the figure for Blenio?
In Blenio, “Oil or gas heating systems” stands at 18.1% (2026), ranking 1,773 of 1,806 municipalities; the national median is 53.5%.
How much electricity does a solar panel produce in Blenio?
In Blenio, a 1 kWp south-facing system tilted at 41° produces about 1,208 kWh a year.
Which municipalities border Blenio?
The nearest to Blenio are Acquarossa (8.3 km), Faido (13 km), Serravalle (13 km), Medel (Lucmagn) (14 km), Dalpe (16 km).