104 municipalities
| Municipality | Canton | Streets | Addresses |
|---|---|---|---|
| Aedermannsdorf | SO | 60 | 454 |
| Aeschi (SO) | SO | 59 | 746 |
| Balm bei Günsberg | SO | 14 | 164 |
| Balsthal | SO | 225 | 2,789 |
| Bärschwil | SO | 69 | 667 |
| Bättwil | SO | 29 | 560 |
| Beinwil (SO) | SO | 83 | 361 |
| Bellach | SO | 101 | 1,915 |
| Bettlach | SO | 111 | 1,615 |
| Biberist | SO | 158 | 3,204 |
| Biezwil | SO | 29 | 206 |
| Bolken | SO | 21 | 355 |
| Boningen | SO | 25 | 433 |
| Breitenbach | SO | 83 | 1,538 |
| Buchegg | SO | 180 | 1,953 |
| Büren (SO) | SO | 52 | 576 |
| Büsserach | SO | 55 | 1,153 |
| Däniken | SO | 67 | 1,243 |
| Deitingen | SO | 77 | 1,296 |
| Derendingen | SO | 139 | 2,275 |
| Dornach | SO | 107 | 2,433 |
| Drei Höfe | SO | 35 | 476 |
| Dulliken | SO | 86 | 1,772 |
| Egerkingen | SO | 103 | 1,169 |
| Eppenberg-Wöschnau | SO | 20 | 205 |
| Erlinsbach (SO) | SO | 84 | 1,545 |
| Erschwil | SO | 56 | 624 |
| Etziken | SO | 29 | 535 |
| Fehren | SO | 27 | 363 |
| Feldbrunnen-St. Niklaus | SO | 29 | 367 |
| Flumenthal | SO | 42 | 529 |
| Fulenbach | SO | 63 | 1,011 |
| Gempen | SO | 42 | 550 |
| Gerlafingen | SO | 98 | 1,732 |
| Grenchen | SO | 192 | 4,808 |
| Gretzenbach | SO | 69 | 1,344 |
| Grindel | SO | 34 | 318 |
| Günsberg | SO | 59 | 643 |
| Gunzgen | SO | 44 | 768 |
| Hägendorf | SO | 131 | 2,186 |
| Härkingen | SO | 65 | 817 |
| Hauenstein-Ifenthal | SO | 28 | 258 |
| Herbetswil | SO | 41 | 416 |
| Himmelried | SO | 47 | 592 |
| Hochwald | SO | 50 | 809 |
| Hofstetten-Flüh | SO | 65 | 1,620 |
| Holderbank (SO) | SO | 49 | 424 |
| Horriwil | SO | 26 | 450 |
| Hubersdorf | SO | 26 | 392 |
| Hüniken | SO | 5 | 85 |
| Kammersrohr | SO | 7 | 33 |
| Kappel (SO) | SO | 70 | 1,156 |
| Kestenholz | SO | 69 | 948 |
| Kienberg | SO | 42 | 389 |
| Kleinlützel | SO | 60 | 990 |
| Kriegstetten | SO | 88 | 1,528 |
| Langendorf | SO | 60 | 1,346 |
| Laupersdorf | SO | 90 | 1,049 |
| Lohn-Ammannsegg | SO | 61 | 1,140 |
| Lommiswil | SO | 50 | 849 |
| Lostorf | SO | 120 | 1,906 |
| Lüsslingen-Nennigkofen | SO | 43 | 733 |
| Luterbach | SO | 77 | 1,471 |
| Lüterkofen-Ichertswil | SO | 50 | 531 |
| Matzendorf | SO | 63 | 876 |
| Meltingen | SO | 41 | 364 |
| Messen | SO | 63 | 862 |
| Metzerlen-Mariastein | SO | 60 | 636 |
| Mümliswil-Ramiswil | SO | 192 | 1,602 |
| Neuendorf | SO | 47 | 958 |
| Niederbuchsiten | SO | 34 | 572 |
| Niedergösgen | SO | 76 | 1,656 |
| Nuglar-St. Pantaleon | SO | 67 | 959 |
| Nunningen | SO | 83 | 1,123 |
| Oberbuchsiten | SO | 87 | 1,007 |
| Oberdorf (SO) | SO | 54 | 939 |
| Obergerlafingen | SO | 41 | 698 |
| Obergösgen | SO | 64 | 812 |
| Oensingen | SO | 104 | 1,868 |
| Olten | SO | 171 | 4,592 |
| Recherswil | SO | 54 | 1,055 |
| Rickenbach (SO) | SO | 45 | 471 |
| Riedholz | SO | 70 | 1,195 |
| Rodersdorf | SO | 51 | 875 |
| Rüttenen | SO | 53 | 816 |
| Schnottwil | SO | 47 | 589 |
| Schönenwerd | SO | 78 | 1,892 |
| Seewen | SO | 89 | 894 |
| Selzach | SO | 131 | 1,741 |
| Solothurn | SO | 251 | 4,866 |
| Starrkirch-Wil | SO | 50 | 653 |
| Stüsslingen | SO | 66 | 749 |
| Subingen | SO | 74 | 1,360 |
| Trimbach | SO | 91 | 2,053 |
| Unterramsern | SO | 11 | 146 |
| Walterswil (SO) | SO | 41 | 524 |
| Wangen bei Olten | SO | 86 | 2,046 |
| Welschenrohr-Gänsbrunnen | SO | 81 | 893 |
| Winznau | SO | 55 | 833 |
| Wisen (SO) | SO | 35 | 324 |
| Witterswil | SO | 46 | 718 |
| Wolfwil | SO | 59 | 1,333 |
| Zuchwil | SO | 101 | 2,083 |
| Zullwil | SO | 36 | 409 |