Ziefen: population and statistics
Ziefen has a population of 1,740 (2025) across 7.8 km², or 222 people per km². It ranks 1,062 of 2,115 municipalities by population. Its population is growing: +12.8% between 2015 and 2025.
- 1,740 residents
- 7.8 km²
- 222 people/km²
- 428 m
Key points
Among the 86 municipalities in Basel-Landschaft, Ziefen ranks No. 34 by population.
Share of jobs in industry and construction: 51.6% in Ziefen, compared with an average of 26.1% in Basel-Landschaft and 22.0% nationally.
Share of single-family houses among residential buildings: 80.4% in Ziefen, compared with an average of 71.2% in Basel-Landschaft and 56.9% nationally.
A 1 kWp solar panel tilted at 37° generates about 1,122 kWh a year here.
Ziefen in numbers
Where is Ziefen?
Population of Ziefen over time
Ziefen had 1,542 residents in 2015 and 1,740 in 2025.
| Year | Population |
|---|---|
| 2020 | 1,637 |
| 2021 | 1,643 |
| 2022 | 1,632 |
| 2023 | 1,668 |
| 2024 | 1,708 |
| 2025 | 1,740 |
Did you know?
- “Share of jobs in industry and construction”: higher than in 94% of municipalities.
- Its area is roughly equal to 1,095 football pitches.
- The nearest municipality is Lupsingen, 1.8 km away.
- The nearest more populous municipality is Bubendorf (4,572 residents), 3.1 km away.
- A 4 kWp rooftop solar system here would generate about 4,488 kWh a year, roughly what an average household uses.
All indicators for Ziefen
Value for the municipality, then the regional average and the national median (for counts: regional and national totals). The gauge places the municipality between the lowest and highest value in the country.
Population
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of people aged 65 and over (2025) | 22.6% | 23.5% | 20.7% | ranked 600 of 1,811 |
Housing
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Dwellings (2026) | 799 | 153,148 | 4,927,050 | ranked 1,185 of 2,108 | |
| Dwellings in buildings built before 1946 (2026) | 30.4% | 16.1% | 23.3% | ranked 571 of 1,806 | |
| Dwellings in buildings built since 2001 (2026) | 27.8% | 22.4% | 25.3% | ranked 736 of 1,806 | |
| Share of single-family houses among residential buildings (2026) | 80.4% | 71.2% | 69.5% | ranked 207 of 1,806 |
Energy
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 37.0% | 65.6% | 53.5% | ranked 1,449 of 1,806 | |
| Heat pumps as main heating (2026) | 32.0% | 18.1% | 13.7% | ranked 202 of 1,806 | |
| Wood heating systems (2026) | 16.5% | 4.5% | 12.4% | ranked 690 of 1,806 | |
| District heating (2026) | 11.5% | 9.2% | 1.4% | ranked 201 of 1,806 | |
| Photovoltaic installations (2026) | 131 | 12,078 | 329,600 | ranked 857 of 2,108 | |
| Installed photovoltaic capacity per 1,000 inhabitants (2026) | 1,283 kW | 887.1 kW | 1,134 kW | ranked 740 of 1,806 | |
| Rooftop solar electricity potential (2026) | 14.8 GWh/year | 1,865 GWh/year | 64,783 GWh/year | ranked 1,250 of 2,114 | |
| Rooftop solar potential per inhabitant (2026) | 8,500 kWh/inh. | 6,139 kWh/inh. | 9,356 kWh/inh. | ranked 1,073 of 1,810 |
Economy
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Establishments (2024) | 120 | 20,022 | 728,011 | ranked 1,120 of 2,112 | |
| Entities listed in the commercial register (2026) | 104 | 20,160 | 762,757 | ranked 1,129 of 2,115 | |
| Entities in the commercial register per 1,000 inhabitants (2026) | 59.8 | 66.3 | 64.9 | ranked 1,125 of 1,811 | |
| Share of limited companies (AG, GmbH) among registered entities (2026) | 62.5% | 67.0% | 65.7% | ranked 1,190 of 1,808 | |
| Share of sole proprietorships among registered entities (2026) | 30.8% | 27.9% | 29.0% | ranked 738 of 1,808 |
Employment
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Jobs (2024) | 481 | 161,523 | 5,679,518 | ranked 1,185 of 2,111 | |
| Jobs per 1,000 inhabitants (2024) | 276.4 | 531.6 | 362.9 | ranked 1,259 of 1,810 | |
| Share of jobs in services (2024) | 39.7% | 70.6% | 63.6% | ranked 1,607 of 1,804 | |
| Share of jobs in industry and construction (2024) | 51.6% | 26.1% | 24.2% | ranked 112 of 1,776 |
Society
| Indicator | Ziefen | Basel-Landschaft | National | Position? | Rank |
|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 11.8% | 25.9% | 18.9% | ranked 1,430 of 1,811 |
Sunshine and temperatures: Ziefen
Frequently asked questions
What is the population of Ziefen?
Ziefen has 1,740 residents (2025), ranking 1,062 of 2,115 municipalities.
How big is Ziefen?
Ziefen covers 7.8 km², with a density of 222 people per km².
Is the population of Ziefen growing?
Between 2015 and 2025, the population of Ziefen went from 1,542 to 1,740, a change of +12.8%.
Where is Ziefen?
Ziefen is in Basel-Landschaft. It belongs to Bezirk Liestal (district). Latitude 47.431, longitude 7.705.
Share of jobs in industry and construction: what is the figure for Ziefen?
In Ziefen, “Share of jobs in industry and construction” stands at 51.6% (2024), ranking 112 of 1,776 municipalities; the national median is 24.2%.
Share of single-family houses among residential buildings: what is the figure for Ziefen?
In Ziefen, “Share of single-family houses among residential buildings” stands at 80.4% (2026), ranking 207 of 1,806 municipalities; the national median is 69.5%.
How much electricity does a solar panel produce in Ziefen?
In Ziefen, a 1 kWp south-facing system tilted at 37° produces about 1,122 kWh a year.
Which municipalities border Ziefen?
The nearest to Ziefen are Lupsingen (1.8 km), Arboldswil (1.9 km), Bubendorf (3.1 km), Seltisberg (3.2 km), Büren (SO) (3.4 km).