Canton · SO
Solothurn
104 municipalities in 10 districts.
- residents, 2025
- 291’583
- km² of land
- 790
- residents per km²
- 369
- Building insurance
- Compulsory, with Solothurnische Gebäudeversicherung (the canton’s own insurer).0.44 ‰ of the insured value a year, plus the 5% federal stamp duty on the premium: CHF 453.50 per CHF 1 million.Prämientarif BGS 618.181, Tarifcode 200, read 12.10.2026
Sources: population and foreign residents on 31.12.2025 and private households 2025, Federal Statistical Office (STATPOP), on today’s municipal boundaries; municipalities, districts and land area without lakes, swisstopo swissTLMRegio; postcodes, swisstopo’s official locality register. Updated each September.