Illnau-Effretikon
- Canton
- Zurich (ZH)
- District
- Bezirk Pfäffikon
- BFS number
- 296
- Postcodes
- 8307, 8308, 8314, 8482, 8483
Population
Official figure
- Permanent residents on 31 December 2010
- 16,021
- Permanent residents on 31 December 2025
- 17,973
- Change 2010–2025
- +12.2%
- Calculated by Votara from official data
Population in 2050?
Votara estimate, not an official forecast canton-level scenario applied proportionally
about 20,800
Estimate for 31 December 2050
How it is calculated
Population 2050 ≈ population 2025 × canton scenario 2050 ÷ canton scenario 2025, rounded to three significant digits.
- Population of Illnau-Effretikon, 31 December 2025 (OFS/BFS)
- 17,973
- Zurich (canton), OFS/BFS reference scenario 2050
- 1,896,284
- Zurich (canton), OFS/BFS reference scenario 2025
- 1,635,800
- Growth factor of the canton 2025–2050
- 1.159
The OFS/BFS publishes no population scenarios for communes. This estimate applies the growth of the whole canton to the commune; local factors such as building zones or new housing are not taken into account.
Vacancy rate
Official figure
0.79%
Empty dwellings on 1 June 2026, as a share of all dwellings.
Zurich (canton): 0.52% (2026)