Postal codes in Switzerland

The postal codes of Swiss cantons:
* 1xxx - Region Western Switzerland (South)
** 10xx - Region Lausanne, Echallens (North-West)
** 11xx - Region Morges, Rolle
** 12xx - Canton of Geneva and Region Nyon
** 13xx - Region between Lausanne and Yverdon, Jura side (Cossonay, Orbe, Vallorbe)
** 14xx - Yverdon, Estavayer-le-Lac (VD/FR)
** 15xx - Moudon, Lucens, Avenches (VD/FR)
** 16xx - Romont, Bulle (VD/FR)
** 17xx - Region Fribourg to Lake Murten (Münchenwiler)
** 18xx - Eastern shore of Lake Geneva (Vevey, Montreux), Chablais (Aigle, Monthey, St. Maurice VD/VS)
** 19xx - Lower Valais (Martigny, Sion) without Region Sierre
* 2xxx - Region Western Switzerland (North)
** 20xx - Region Neuchâtel
** 21xx - Val de Travers NE
** 22xx - Upper Val de Ruz,
** 23xx - La Chaux-de-Fonds, Franches-Montagnes
** 24xx - Le Locle, La Sagne
** 25xx - Region Biel/Bienne, Lake Biel, Grenchen
** 26xx - Vallon de St. Imier
** 27xx - Bernese Jura (Tavannes, Tramelan, Moutier, Franches Montagnes)
** 28xx - Delémont
** 29xx - Ajoie (Porrentruy)
* 3xxx - Region Berne/Upper Valais
** 30xx - City of Bern and agglomeration
** 31xx - Southern agglomeration of Berne
** 32xx - Seeland (Aarberg, Ins, Kerzers, Lyss)
** 33xx - Region between Berne and Solothurn
** 34xx - Region Burgdorf, Oberaargau (except Langenthal)
** 35xx - Emmental
** 36xx - Region Thun
** 37xx - Region Spiez, Simmental
** 38xx - Region Interlaken, Haslital
** 39xx - Upper Valais with region Sierre, Crans Montana
* 4xxx - Region Basel
** 40xx - City of Basel
** 41xx - Leimental, Birstal, Riehen, Bettingen, Pratteln
** 42xx - Laufental, Schwarzbubenland
** 43xx - Western Fricktal (Rheinfelden, Stein AG)
** 44xx - Basel-Country
** 45xx - Region Solothurn
** 46xx - Region Olten
** 47xx - Region Oensingen, Balsthal
** 48xx - Region Zofingen
** 49xx - Region Langenthal
* 5xxx - Region Aarau
** 50xx - City of Aarau and Region, eastern Fricktal (Frick, Laufenburg)
** 51xx - Region Wildegg, Schinznach
** 52xx - Region Brugg, Mettauertal
** 53xx - Region Turgi to Koblenz
** 54xx - Region Baden, Wettingen
** 55xx - Region Mellingen
** 56xx - Region Lenzburg, Wohlen, Bremgarten, Muri (Freiamt)
** 57xx - Region Kulm, Beinwil, Kölliken, Safenwil
* 6xxx - Region Central Switzerland (Innerschweiz), Tessin
** 60xx - Region Lucerne, Obwalden
** 61xx - Entlebuch, Willisau
** 62xx - Region Sempach, Sursee, Hochdorf
** 63xx - Canton of Zug, Nidwalden
** 64xx - Canton of Schwyz (except Ausserschwyz), Canton of Uri
** 65xx - Region Bellinzona, Misox, Val Calanca (GR)
** 66xx - Locarno, Valle Maggia, Val Verzasca
** 67xx - Leventina, Val Blenio
** 68xx - Mendrisotto
** 69xx - Region Lugano
* 7xxx - Region Graubünden
** 70xx - Chur, Schanfigg (Arosa), Domat/Ems, Flims
** 71xx - Bündner Oberland
** 72xx - Prättigau, Davos
** 73xx - Bündner Herrschaft, Landquart, Sargans
** 74xx - Hinterrhein, Albula
** 75xx - Engadin, Val Müstair
** 76xx - Bergell
** 77xx - Poschiavo
* 8xxx - Region Zürich
** 80xx - City of Zürich
** 81xx - Region Zürcher Unterland
** 82xx - Region Schaffhausen, Kreuzlingen
** 83xx - Kloten, Zürcher Oberland, Hinwil, Hinterthurgau
** 84xx - Region Winterthur, Tösstal
** 85xx - Region Frauenfeld, Weinfelden, Amriswil, Romanshorn
** 86xx - Region Dübendorf, Zürcher Oberland, See (SG)
** 87xx - Region Right shore of Lake Zürich, Gaster/See (SG), Canton Glarus
** 88xx - Region Linkes Zürichseeufer, Ausserschwyz (March, Höfe, Einsiedeln SZ), Glarner Unterland, Sarganserland/Lake Walen
** 89xx - Region Limmattal, Albis, Knonauer Amt, Kelleramt (eastermost Aargau)
* 9xxx - Region Eastern Switzerland (Ostschweiz)
** 90xx - Region St. Gallen, Appenzell
** 91xx - Region Herisau
** 92xx - Region Gossau, Flawil, Uzwil, Bischofszell
** 93xx - Region Arbon
** 94xx - Region Rorschach, Rheintal, Liechtenstein
** 95xx - Region Wil
** 96xx - Toggenburg