4104 Oberwil BL (Oberwil (BL)): key figures
4104 Oberwil BL (postcode area in Oberwil (BL)) has 11,427 residents in 2025 across 7.9 km², or 1,448 people per km². Population: +3.6% between 2015 and 2025.
- 11,427 residents
- 7.9 km²
- 1,448 people/km²
4104 Oberwil BL in numbers
Key points
Nationally, 4104 Oberwil BL ranks No. 178 of 2,275 postcode areas.
Population of 4104 Oberwil BL over time
4104 Oberwil BL had 11,027 residents in 2015 and 11,427 in 2025.
| Year | Population |
|---|---|
| 2015 | 11,027 |
| 2020 | 11,049 |
| 2023 | 11,454 |
| 2025 | 11,427 |
All indicators for 4104 Oberwil BL
Next to the value for 4104 Oberwil BL: all postcode areas of Oberwil (BL), then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 4104 Oberwil BL | Oberwil (BL) | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 5,614 | – | – | ranked 190 of 3,164 | ||
| Residential buildings (2026) | 2,574 | – | – | ranked 48 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 7.9% | 7.9% | 23.2% | ranked 2,995 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 26.8% | 26.8% | 23.6% | ranked 1,085 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 74.3% | 74.3% | 63.5% | ranked 1,102 of 3,160 |
Energy
| Indicator | 4104 Oberwil BL | Oberwil (BL) | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 71.3% | 71.3% | 56.2% | ranked 475 of 3,160 | ||
| Heat pumps as main heating (2026) | 15.4% | 15.4% | 16.2% | ranked 1,283 of 3,160 | ||
| Wood heating systems (2026) | 1.3% | 1.3% | 13.5% | ranked 3,028 of 3,160 | ||
| District heating (2026) | 10.6% | 10.6% | 5.6% | ranked 350 of 3,160 |
Society
| Indicator | 4104 Oberwil BL | Oberwil (BL) | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 24.8% | 24.8% | 29.8% | ranked 747 of 2,040 |
Where is 4104 Oberwil BL?
Frequently asked questions
What is the population of 4104 Oberwil BL (Oberwil (BL))?
4104 Oberwil BL has 11,427 residents in 2025. It covers 7.9 km², or 1,448 people per km².
Where is 4104 Oberwil BL?
4104 Oberwil BL (postcode area) is part of Oberwil (BL), in Basel-Landschaft.
What is the value of “Share of foreign nationals” in 4104 Oberwil BL?
Share of foreign nationals: 24.8% (2025), ranked 747 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4104 Oberwil BL?
Dwellings: 5,614 (2026), ranked 190 of 3,164 postcode areas in the country.