← Canton Solothurn overview
Ranking · Data 2025 · Source: BFS
Municipalities with the highest share of foreign residents in canton Solothurn (2025)
National ranking →Dulliken has the highest share of foreign residents in canton Solothurn: 46.3% (2025). It is followed by Zuchwil (45%) and Trimbach (44.7%). Source: Federal Statistical Office (BFS), STATPOP 2025.
Ranking
BFS · STATPOP · 2025| Rank | Municipality | Foreign residents | Residents |
|---|---|---|---|
| 1 | Dulliken | 46.3% | 5'489 |
| 2 | Zuchwil | 45% | 9'622 |
| 3 | Trimbach | 44.7% | 6'928 |
| 4 | Gerlafingen | 42.3% | 5'859 |
| 5 | Grenchen | 40.9% | 18'973 |
| 6 | Oensingen | 40.4% | 6'766 |
| 7 | Schönenwerd | 39.8% | 5'437 |
| 8 | Egerkingen | 37.9% | 4'365 |
| 9 | Balsthal | 37.2% | 6'622 |
| 10 | Eppenberg-Wöschnau | 37.2% | 336 |
| 11 | Derendingen | 33% | 7'219 |
| 12 | Niedergösgen | 32.5% | 4'297 |
| 13 | Olten | 32.5% | 19'265 |
| 14 | Oberbuchsiten | 32% | 2'382 |
| 15 | Bellach | 31% | 5'632 |
| 16 | Obergösgen | 30.6% | 2'553 |
| 17 | Wangen bei Olten | 29.2% | 5'598 |
| 18 | Dornach | 29.2% | 6'898 |
| 19 | Biberist | 27.7% | 9'531 |
| 20 | Hägendorf | 27.4% | 5'343 |
| 21 | Breitenbach | 26.7% | 4'440 |
| 22 | Däniken | 26.5% | 3'108 |
| 23 | Gretzenbach | 26.4% | 2'825 |
| 24 | Kappel | 26.2% | 3'591 |
| 25 | Holderbank | 24.5% | 779 |
| 26 | Luterbach | 23.5% | 3'756 |
| 27 | Solothurn | 22.8% | 16'830 |
| 28 | Rickenbach | 22.3% | 1'208 |
| 29 | Niederbuchsiten | 21.3% | 1'369 |
| 30 | Boningen | 21.2% | 816 |
| 31 | Bettlach | 20.6% | 4'935 |
| 32 | Hofstetten-Flüh | 20.5% | 3'410 |
| 33 | Starrkirch-Wil | 19.3% | 2'020 |
| 34 | Langendorf | 18.9% | 3'983 |
| 35 | Neuendorf | 18.9% | 2'412 |
| 36 | Erlinsbach | 18.7% | 3'761 |
| 37 | Subingen | 18.5% | 3'311 |
| 38 | Witterswil | 18.3% | 1'475 |
| 39 | Winznau | 18.1% | 2'061 |
| 40 | Selzach | 18.1% | 3'750 |
| 41 | Erschwil | 17.8% | 996 |
| 42 | Zullwil | 17.6% | 704 |
| 43 | Büsserach | 17.2% | 2'473 |
| 44 | Gempen | 16.4% | 919 |
| 45 | Härkingen | 16.3% | 1'763 |
| 46 | Bättwil | 16% | 1'185 |
| 47 | Welschenrohr-Gänsbrunnen | 15.8% | 1'199 |
| 48 | Gunzgen | 15.5% | 1'783 |
| 49 | Mümliswil-Ramiswil | 15.3% | 2'472 |
| 50 | Büren | 15.3% | 1'060 |
| 51 | Kienberg | 15.2% | 526 |
| 52 | Himmelried | 15.2% | 974 |
| 53 | Walterswil | 15.1% | 768 |
| 54 | Laupersdorf | 15% | 1'916 |
| 55 | Kriegstetten | 14.9% | 1'456 |
| 56 | Flumenthal | 14.8% | 1'023 |
| 57 | Recherswil | 14.7% | 2'260 |
| 58 | Deitingen | 14.1% | 2'409 |
| 59 | Kleinlützel | 13.9% | 1'190 |
| 60 | Obergerlafingen | 13.7% | 1'232 |
| 61 | Metzerlen-Mariastein | 13.4% | 970 |
| 62 | Etziken | 13.4% | 1'093 |
| 63 | Bärschwil | 13.3% | 806 |
| 64 | Grindel | 13.2% | 508 |
| 65 | Wolfwil | 13.1% | 2'473 |
| 66 | Hauenstein-Ifenthal | 12.6% | 348 |
| 67 | Feldbrunnen-St. Niklaus | 12.6% | 1'068 |
| 68 | Nuglar-St. Pantaleon | 12.5% | 1'580 |
| 69 | Lostorf | 12.4% | 4'113 |
| 70 | Rodersdorf | 12.2% | 1'398 |
| 71 | Herbetswil | 12.2% | 617 |
| 72 | Seewen | 12.1% | 1'088 |
| 73 | Fulenbach | 12.1% | 1'841 |
| 74 | Hochwald | 11.7% | 1'278 |
| 75 | Riedholz | 11.4% | 2'319 |
| 76 | Matzendorf | 11.3% | 1'439 |
| 77 | Beinwil | 11.3% | 248 |
| 78 | Stüsslingen | 10.6% | 1'265 |
| 79 | Kestenholz | 10.2% | 1'888 |
| 80 | Nunningen | 10.2% | 1'948 |
| 81 | Lommiswil | 9.5% | 1'615 |
| 82 | Lohn-Ammannsegg | 9.5% | 2'940 |
| 83 | Meltingen | 9.5% | 623 |
| 84 | Kammersrohr | 9.4% | 32 |
| 85 | Aeschi | 8.9% | 1'342 |
| 86 | Balm bei Günsberg | 8.9% | 213 |
| 87 | Oberdorf | 8.6% | 1'806 |
| 88 | Hubersdorf | 8.3% | 727 |
| 89 | Lüterkofen-Ichertswil | 8% | 923 |
| 90 | Drei Höfe | 8% | 727 |
| 91 | Lüsslingen-Nennigkofen | 7.9% | 1'131 |
| 92 | Rüttenen | 7.8% | 1'498 |
| 93 | Bolken | 7.8% | 579 |
| 94 | Wisen | 7.5% | 451 |
| 95 | Horriwil | 7% | 940 |
| 96 | Günsberg | 6.7% | 1'169 |
| 97 | Schnottwil | 6.6% | 1'159 |
| 98 | Hüniken | 6.3% | 160 |
| 99 | Aedermannsdorf | 6.1% | 607 |
| 100 | Buchegg | 5.7% | 2'979 |
| 101 | Fehren | 5.7% | 619 |
| 102 | Biezwil | 4.9% | 345 |
| 103 | Messen | 4.7% | 1'506 |
| 104 | Unterramsern | 3% | 230 |
STATPOP 2025 · Federal Statistical Office (FSO), retrieved 31.08.2026
How we measure this
BFS · STATPOPShare of permanent residents without Swiss citizenship, per municipality, from the BFS STATPOP register (2025). Citizenship, not place of birth. Small municipalities can show extreme values — the residents column provides the context.
Frequently asked questions
- Which municipality in canton Solothurn has the highest share of foreign residents?
- Dulliken has the highest share of foreign residents in canton Solothurn: 46.3% as of 2025.
- How is the share of foreign residents measured?
- It is the share of the permanent resident population without Swiss citizenship, from the BFS STATPOP register. Citizenship is not the same as place of birth or migration background.