3800 Interlaken (Interlaken): key figures
3800 Interlaken (postcode area in Interlaken) has 15,893 residents in 2025 across 25.0 km², or 636 people per km². Population: +5.1% between 2015 and 2025.
- 15,893 residents
- 25.0 km²
- 636 people/km²
3800 Interlaken in numbers
Key points
Nationally, 3800 Interlaken ranks No. 113 of 2,275 postcode areas.
Population of 3800 Interlaken over time
3800 Interlaken had 15,116 residents in 2015 and 15,893 in 2025.
| Year | Population |
|---|---|
| 2015 | 15,116 |
| 2020 | 15,408 |
| 2023 | 15,757 |
| 2025 | 15,893 |
All indicators for 3800 Interlaken
Next to the value for 3800 Interlaken: all postcode areas of Interlaken, then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 3800 Interlaken | Interlaken | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 9,767 | – | – | ranked 87 of 3,164 | ||
| Residential buildings (2026) | 3,006 | – | – | ranked 23 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 30.8% | 30.8% | 23.2% | ranked 1,394 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 17.8% | 17.8% | 23.6% | ranked 1,944 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 46.6% | 46.6% | 63.5% | ranked 2,890 of 3,160 |
Energy
| Indicator | 3800 Interlaken | Interlaken | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 70.6% | 70.6% | 56.2% | ranked 509 of 3,160 | ||
| Heat pumps as main heating (2026) | 6.2% | 6.2% | 16.2% | ranked 2,524 of 3,160 | ||
| Wood heating systems (2026) | 8.0% | 8.0% | 13.5% | ranked 2,260 of 3,160 | ||
| District heating (2026) | 8.6% | 8.6% | 5.6% | ranked 437 of 3,160 |
Society
| Indicator | 3800 Interlaken | Interlaken | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 29.7% | 29.7% | 29.8% | ranked 475 of 2,040 |
Where is 3800 Interlaken?
Frequently asked questions
What is the population of 3800 Interlaken (Interlaken)?
3800 Interlaken has 15,893 residents in 2025. It covers 25.0 km², or 636 people per km².
Where is 3800 Interlaken?
3800 Interlaken (postcode area) is part of Interlaken, in Bern.
What is the value of “Share of foreign nationals” in 3800 Interlaken?
Share of foreign nationals: 29.7% (2025), ranked 475 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 3800 Interlaken?
Dwellings: 9,767 (2026), ranked 87 of 3,164 postcode areas in the country.