Postcode area · Sissach · Basel-Landschaft
4450 Sissach (Sissach): key figures
4450 Sissach (postcode area in Sissach) has 6,981 residents in 2025 across 9.0 km², or 777 people per km². Population: +5.1% between 2015 and 2025.
- 6,981 residents
- 9.0 km²
- 777 people/km²
4450 Sissach in numbers
Population
6,981
ranked 300 of 2,275
+5.1%between 2015 and 2025
2015–2025
Population density
777people/km²
ranked 474 of 2,275
Area
9.0km²
ranked 1,289 of 3,168
Share of foreign nationals
19.1%
ranked 1,192 of 2,040
Dwellings
3,546
ranked 322 of 3,164
Residential buildings
1,510
ranked 199 of 3,160
Dwellings in buildings built before 1946
24.3%
ranked 1,823 of 3,164
Key points
Nationally, 4450 Sissach ranks No. 300 of 2,275 postcode areas.
Population of 4450 Sissach over time
Population, 2015–2025
4450 Sissach had 6,643 residents in 2015 and 6,981 in 2025.
| Year | Population |
|---|---|
| 2015 | 6,643 |
| 2020 | 6,722 |
| 2023 | 6,868 |
| 2025 | 6,981 |
All indicators for 4450 Sissach
Next to the value for 4450 Sissach: all postcode areas of Sissach, then of the whole country (totals for counts, weighted averages for rates).
4450 SissachNational medianHover over or tap a bar to see what it shows.
Housing
| Indicator | 4450 Sissach | Sissach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 3,546 | – | – | ranked 322 of 3,164 | ||
| Residential buildings (2026) | 1,510 | – | – | ranked 199 of 3,160 | ||
| Dwellings in buildings built before 1946 (2026) | 24.3% | 24.3% | 23.2% | ranked 1,823 of 3,164 | ||
| Dwellings in buildings built since 2001 (2026) | 29.8% | 29.8% | 23.6% | ranked 828 of 3,164 | ||
| Share of detached houses among residential buildings (2026) | 63.4% | 63.4% | 63.5% | ranked 2,144 of 3,160 |
Energy
| Indicator | 4450 Sissach | Sissach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 47.8% | 47.8% | 56.2% | ranked 1,680 of 3,160 | ||
| Heat pumps as main heating (2026) | 19.0% | 19.0% | 16.2% | ranked 950 of 3,160 | ||
| Wood heating systems (2026) | 11.6% | 11.6% | 13.5% | ranked 1,919 of 3,160 | ||
| District heating (2026) | 16.5% | 16.5% | 5.6% | ranked 201 of 3,160 |
Society
| Indicator | 4450 Sissach | Sissach | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 19.1% | 19.1% | 29.8% | ranked 1,192 of 2,040 |
Where is 4450 Sissach?
Frequently asked questions
What is the population of 4450 Sissach (Sissach)?
4450 Sissach has 6,981 residents in 2025. It covers 9.0 km², or 777 people per km².
Where is 4450 Sissach?
4450 Sissach (postcode area) is part of Sissach, in Basel-Landschaft.
What is the value of “Share of foreign nationals” in 4450 Sissach?
Share of foreign nationals: 19.1% (2025), ranked 1,192 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 4450 Sissach?
Dwellings: 3,546 (2026), ranked 322 of 3,164 postcode areas in the country.