6523 Preonzo (Bellinzona): key figures
6523 Preonzo (postcode area in Bellinzona) has 685 residents in 2025 across 16.3 km², or 41.9 people per km². By population, 6523 Preonzo ranks No. 11 of 12 postcode areas in Bellinzona. Population: +18.1% between 2015 and 2025.
- 685 residents
- 16.3 km²
- 42 people/km²
6523 Preonzo in numbers
Key points
By population, 6523 Preonzo ranks No. 11 of 12 postcode areas in Bellinzona.
Nationally, 6523 Preonzo ranks No. 1,848 of 2,275 postcode areas.
Population of 6523 Preonzo over time
6523 Preonzo had 580 residents in 2015 and 685 in 2025.
| Year | Population |
|---|---|
| 2015 | 580 |
| 2020 | 645 |
| 2023 | 667 |
| 2025 | 685 |
All indicators for 6523 Preonzo
Next to the value for 6523 Preonzo: all postcode areas of Bellinzona, then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 6523 Preonzo | Bellinzona | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 414 | – | – | ranked 12 of 15 | ranked 2,119 of 3,164 | |
| Residential buildings (2026) | 298 | – | – | ranked 13 of 15 | ranked 1,840 of 3,160 | |
| Dwellings in buildings built before 1946 (2026) | 33.6% | 17.6% | 23.2% | ranked 5 of 15 | ranked 1,234 of 3,164 | |
| Dwellings in buildings built since 2001 (2026) | 22.9% | 25.9% | 23.6% | ranked 10 of 15 | ranked 1,435 of 3,164 | |
| Share of detached houses among residential buildings (2026) | 78.2% | 67.8% | 63.5% | ranked 8 of 15 | ranked 701 of 3,160 |
Energy
| Indicator | 6523 Preonzo | Bellinzona | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 40.4% | 52.5% | 56.2% | ranked 10 of 15 | ranked 2,064 of 3,160 | |
| Heat pumps as main heating (2026) | 14.2% | 13.2% | 16.2% | ranked 6 of 15 | ranked 1,401 of 3,160 | |
| Wood heating systems (2026) | 26.1% | 18.2% | 13.5% | ranked 6 of 15 | ranked 948 of 3,160 | |
| District heating (2026) | 0.0% | 2.2% | 5.6% | ranked 10 of 15 | ranked 2,207 of 3,160 |
Society
| Indicator | 6523 Preonzo | Bellinzona | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 17.4% | 29.4% | 29.8% | ranked 10 of 11 | ranked 1,314 of 2,040 |
Where is 6523 Preonzo?
Other postcode areas in Bellinzona
- 6500 Bellinzona17,751 residents
- 6512 Giubiasco9,295 residents
- 6514 Sementina3,418 residents
- 6702 Claro3,171 residents
- 6513 Monte Carasso3,077 residents
- 6528 Camorino2,962 residents
- 6503 Bellinzona1,684 residents
- 6515 Gudo921 residents
Postcode areas near 6523 Preonzo
- 6524 Moleno131 residents
- 6702 Claro3,171 residents
- 6525 Gnosca798 residents
- 6518 Gorduno857 residents
- 6503 Bellinzona1,684 residents
- 6500 Bellinzona17,751 residents
Previous in alphabetical order: 6518 Gorduno
Next in alphabetical order: 6524 Moleno
Frequently asked questions
What is the population of 6523 Preonzo (Bellinzona)?
6523 Preonzo has 685 residents in 2025. It covers 16.3 km², or 42 people per km².
Where is 6523 Preonzo?
6523 Preonzo (postcode area) is part of Bellinzona, in Ticino.
What is the value of “Share of foreign nationals” in 6523 Preonzo?
Share of foreign nationals: 17.4% (2025), ranked 1,314 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 6523 Preonzo?
Dwellings: 414 (2026), ranked 2,119 of 3,164 postcode areas in the country.