Bolken
- Canton
- Solothurn (SO)
- District
- Bezirk Wasseramt
- BFS number
- 2514
- Postcodes
- 4556
Population
Official figure
- Permanent residents on 31 December 2010
- 542
- Permanent residents on 31 December 2025
- 579
- Change 2010–2025
- +6.8%
- Calculated by Votara from official data
Population in 2050?
Votara estimate, not an official forecast canton-level scenario applied proportionally
about 636
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 Bolken, 31 December 2025 (OFS/BFS)
- 579
- Solothurn (canton), OFS/BFS reference scenario 2050
- 319,611
- Solothurn (canton), OFS/BFS reference scenario 2025
- 290,844
- Growth factor of the canton 2025–2050
- 1.099
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
0.39%
Empty dwellings on 1 June 2026, as a share of all dwellings.
Solothurn (canton): 1.91% (2026)