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Solothurn

Canton SO 104 communes

Population

Permanent residents on 31 December 2010
255,284
Permanent residents on 31 December 2025
291,583
Change 2010–2025
+14.2%

Sum of the canton's 104 communes within today's borders (today's communes, also for 2010). Calculated by Votara from official data

Population scenarios 2024–2050

Permanent resident population on 31 December, three OFS/BFS scenarios for the canton

Official figure

Persons

050K100K150K200K250K300K350K202520302035204020452050
  • OFS/BFS scenario: high
  • OFS/BFS scenario: reference
  • OFS/BFS scenario: low
  • Range between the OFS/BFS low and high scenarios

In 2050, the projections range from 292,061 (OFS/BFS scenario: low) to 346,963 (OFS/BFS scenario: high).

Show the data as a table
Data shown in the chart “Population scenarios 2024–2050”
YearOFS/BFS scenario: highOFS/BFS scenario: referenceOFS/BFS scenario: low
2024289,651288,823287,976
2025292,569290,844289,087
2026295,489292,835290,135
2027298,412294,798291,117
2028301,315296,724292,031
2029304,205298,595292,885
2030307,065300,423293,661
2031309,896302,200294,359
2032312,590303,821294,900
2033315,153305,309295,319
2034317,573306,656295,592
2035319,857307,862295,734
2036322,054308,990295,794
2037324,154310,040295,794
2038326,165311,025295,716
2039328,088311,936295,594
2040329,927312,767295,414
2041331,745313,575295,202
2042333,542314,368294,977
2043335,322315,121294,713
2044337,066315,852294,422
2045338,781316,558294,097
2046340,474317,227293,742
2047342,138317,873293,365
2048343,774318,495292,952
2049345,380319,074292,519
2050346,963319,611292,061

According to the OFS/BFS, scenarios are conditional projections, not forecasts.

Vacancy rate 1997–2026

Empty dwellings on 1 June, as a share of all dwellings

Official figure

Vacancy rate (%)

00.511.522.533.5200020102020
  • Vacancy rate (%)

Vacancy rate (%) fell from 3.06% in 1997 to 1.91% in 2026.

Show the data as a table
Data shown in the chart “Vacancy rate 1997–2026”
YearVacancy rate (%)
19973.06%
19983.00%
19992.76%
20002.77%
20012.28%
20021.99%
20031.72%
20041.79%
20051.91%
20061.98%
20072.04%
20081.83%
20091.68%
20101.95%
20112.09%
20121.98%
20131.87%
20142.13%
20152.33%
20162.62%
20172.79%
20182.98%
20193.40%
20203.22%
20213.15%
20222.66%
20232.39%
20242.37%
20252.05%
20261.91%

Land use

Area by main type of land use, in hectares, per survey period
Survey period1979–1985 (1982)1992–1997 (1994)2004–2009 (2005–06)2013–2018 (2014–15)2020–2025 (2024)
Settlement areas8,7899,96210,96811,65512,080
Agricultural areas35,49834,27333,42432,70332,380
Wooded areas33,89733,97733,79733,84533,659
Unproductive areas855827850836920

Sample survey on aerial photographs (flight years in brackets). The current survey is published canton by canton.

Source: OFS/BFS — Swiss land use statistics — main land-use domains (data 1979–2025, source checked on )

The last 10 federal votes

Result in the canton (Solothurn) and in Switzerland as a whole, newest first
DateVoteSolothurnSwitzerland
«Food Initiative»25.8% yes No majority provisional result (not yet validated by the Federal Council)27.5% yes Rejected
Neutrality Initiative27.5% yes No majority provisional result (not yet validated by the Federal Council)29.9% yes Rejected
Amendment to the Civilian Service Act54.9% yes Yes majority provisional result (not yet validated by the Federal Council)52.5% yes Accepted
«Sustainability initiative» (Limiting the national population)50.7% yes Yes majority provisional result (not yet validated by the Federal Council)45.2% yes Rejected
Act on Individual Taxation53.6% yes Yes majority provisional result (not yet validated by the Federal Council)54.3% yes Accepted
Climate Fund Initiative24.8% yes No majority provisional result (not yet validated by the Federal Council)29.3% yes Rejected
Initiative «200 francs is enough!» (fees for public broadcasting)39.8% yes No majority provisional result (not yet validated by the Federal Council)38.1% yes Rejected
Decree on the Swiss currency and cash supply72.5% yes Yes majority provisional result (not yet validated by the Federal Council)73.4% yes Accepted
Initiative «Cash is Freedom»45.1% yes No majority provisional result (not yet validated by the Federal Council)45.6% yes Rejected
Initiative «For a social climate policy (Initiative for a Future)»17.3% yes No majority 21.7% yes Rejected

Sources: Année politique suisse, University of Bern — Swissvotes – results of federal popular votes by canton (source checked on ) Checks failing; OFS/BFS — FSO – results of federal popular votes, Switzerland and cantons (data 2024–2026, source checked on ) Checks failing; Année politique suisse, University of Bern — Swissvotes – database of federal popular votes (data 1848–2027, source checked on ) Checks failing

Communes (104)

Bezirk Gäu (8)
Bezirk Thal (8)
Bezirk Bucheggberg (7)
Bezirk Dorneck (11)
Bezirk Gösgen (10)
Bezirk Wasseramt (17)
Bezirk Lebern (15)
Bezirk Olten (15)
Bezirk Solothurn (1)
Bezirk Thierstein (12)

Source: OFS/BFS — Official commune register of Switzerland (source checked on ) Checks failing