Postcode area · Therwil · Basel-Landschaft
4106 Therwil (Therwil): key figures
4106 Therwil (postcode area in Therwil) has 10,114 residents in 2025 across 7.5 km², or 1,350 people per km². Population: +1.0% between 2015 and 2025.
- 10,114 residents
- 7.5 km²
- 1,350 people/km²
4106 Therwil in numbers
Population
10,114
ranked 206 of 2,275
+1.0%between 2015 and 2025
2015–2025
Population density
1,350people/km²
ranked 263 of 2,275
Area
7.5km²
ranked 1,550 of 3,168
Share of foreign nationals
20.5%
ranked 1,063 of 2,040
Dwellings
4,883
ranked 235 of 3,164
Residential buildings
2,367
ranked 61 of 3,160
Dwellings in buildings built before 1946
4.4%
ranked 3,117 of 3,164
Key points
Nationally, 4106 Therwil ranks No. 206 of 2,275 postcode areas.
Population of 4106 Therwil over time
Population, 2015–2025
4106 Therwil had 10,015 residents in 2015 and 10,114 in 2025.
| Year | Population |
|---|---|
| 2015 | 10,015 |
| 2020 | 9,977 |
| 2023 | 10,035 |
| 2025 | 10,114 |
All indicators for 4106 Therwil
Next to the value for 4106 Therwil: all postcode areas of Therwil, then of the whole country (totals for counts, weighted averages for rates).
4106 TherwilNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4106 Therwil | Therwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 4,883 | – | – | ranked 235 of 3,164 | ||
| Residential buildings (2026) | 2,367 | – | – | ranked 61 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 4.4% | 4.4% | 23.2% | ranked 3,117 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 24.6% | 24.6% | 23.6% | ranked 1,285 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 80.3% | 80.3% | 63.5% | ranked 512 of 3,160 |
Energy
| Indicator | 4106 Therwil | Therwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 76.1% | 76.1% | 56.2% | ranked 276 of 3,160 | ||
| Heat pumps as main heating (2026) | 12.5% | 12.5% | 16.2% | ranked 1,605 of 3,160 | ||
| Wood heating systems (2026) | 1.9% | 1.9% | 13.5% | ranked 2,962 of 3,160 | ||
| District heating (2026) | 8.8% | 8.8% | 5.6% | ranked 426 of 3,160 |
Society
| Indicator | 4106 Therwil | Therwil | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 20.5% | 20.5% | 29.8% | ranked 1,063 of 2,040 |
Where is 4106 Therwil?
Frequently asked questions
What is the population of 4106 Therwil (Therwil)?
4106 Therwil has 10,114 residents in 2025. It covers 7.5 km², or 1,350 people per km².
Where is 4106 Therwil?
4106 Therwil (postcode area) is part of Therwil, in Basel-Landschaft.
What is the value of “Share of foreign nationals” in 4106 Therwil?
Share of foreign nationals: 20.5% (2025), ranked 1,063 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4106 Therwil?
Dwellings: 4,883 (2026), ranked 235 of 3,164 postcode areas in the country.