8909 Zwillikon (Affoltern am Albis): key figures
8909 Zwillikon (postcode area in Affoltern am Albis) has 1,395 residents in 2025 across 3.1 km², or 449 people per km². By population, 8909 Zwillikon ranks No. 2 of 2 postcode areas in Affoltern am Albis. Population: +9.0% between 2015 and 2025.
- 1,395 residents
- 3.1 km²
- 449 people/km²
8909 Zwillikon in numbers
Key points
By population, 8909 Zwillikon ranks No. 2 of 2 postcode areas in Affoltern am Albis.
Nationally, 8909 Zwillikon ranks No. 1,337 of 2,275 postcode areas.
Population of 8909 Zwillikon over time
8909 Zwillikon had 1,280 residents in 2015 and 1,395 in 2025.
| Year | Population |
|---|---|
| 2015 | 1,280 |
| 2020 | 1,289 |
| 2023 | 1,403 |
| 2025 | 1,395 |
All indicators for 8909 Zwillikon
Next to the value for 8909 Zwillikon: all postcode areas of Affoltern am Albis, then of the whole country (totals for counts, weighted averages for rates).
Housing
| Indicator | 8909 Zwillikon | Affoltern am Albis | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Dwellings (2026) | 659 | – | – | ranked 2 of 2 | ranked 1,570 of 3,164 | |
| Residential buildings (2026) | 262 | – | – | ranked 2 of 2 | ranked 2,010 of 3,160 | |
| Dwellings in buildings built before 1946 (2026) | 19.1% | 10.5% | 23.2% | ranked 1 of 2 | ranked 2,215 of 3,164 | |
| Dwellings in buildings built since 2001 (2026) | 27.2% | 27.9% | 23.6% | ranked 2 of 2 | ranked 1,039 of 3,164 | |
| Share of detached houses among residential buildings (2026) | 66.4% | 60.1% | 63.5% | ranked 1 of 2 | ranked 1,902 of 3,160 |
Energy
| Indicator | 8909 Zwillikon | Affoltern am Albis | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Oil or gas heating systems (2026) | 28.0% | 38.7% | 56.2% | ranked 2 of 2 | ranked 2,645 of 3,160 | |
| Heat pumps as main heating (2026) | 52.5% | 40.3% | 16.2% | ranked 1 of 2 | ranked 29 of 3,160 | |
| Wood heating systems (2026) | 14.2% | 4.8% | 13.5% | ranked 1 of 2 | ranked 1,717 of 3,160 | |
| District heating (2026) | 0.0% | 11.5% | 5.6% | ranked 2 of 2 | ranked 2,207 of 3,160 |
Society
| Indicator | 8909 Zwillikon | Affoltern am Albis | Switzerland | Position? | Rank in the area | Rank in the country |
|---|---|---|---|---|---|---|
| Share of foreign nationals (2025) | 24.6% | 31.7% | 29.8% | ranked 2 of 2 | ranked 764 of 2,040 |
Where is 8909 Zwillikon?
Other postcode areas in Affoltern am Albis
Postcode areas near 8909 Zwillikon
- 8910 Affoltern am Albis11,417 residents
- 8908 HedingenHedingen
- 8913 OttenbachOttenbach
- 8912 ObfeldenObfelden
- 8916 JonenJonen
- 8905 Arni AGArni (AG)
Next in alphabetical order: 8910 Affoltern am Albis
Frequently asked questions
What is the population of 8909 Zwillikon (Affoltern am Albis)?
8909 Zwillikon has 1,395 residents in 2025. It covers 3.1 km², or 449 people per km².
Where is 8909 Zwillikon?
8909 Zwillikon (postcode area) is part of Affoltern am Albis, in Zurich.
What is the value of “Share of foreign nationals” in 8909 Zwillikon?
Share of foreign nationals: 24.6% (2025), ranked 764 of 2,040 postcode areas in the country.
What is the value of “Dwellings” in 8909 Zwillikon?
Dwellings: 659 (2026), ranked 1,570 of 3,164 postcode areas in the country.