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 (Munchenwiler)
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 Neuchatel
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 - Delemont
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, Kolliken, 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 Graubunden
70xx - Chur, Schanfigg (Arosa), Domat/Ems, Flims
71xx - Bundner Oberland
72xx - Prattigau, Davos
73xx - Bundner Herrschaft, Landquart, Sargans
74xx - Hinterrhein, Albula
75xx - Engadin, Val Mustair
76xx - Bergell
77xx - Poschiavo
8xxx - Region Zurich
80xx - City of Zurich
81xx - Region Zurcher Unterland
82xx - Region Schaffhausen, Kreuzlingen
83xx - Kloten, Zurcher Oberland, Hinwil, Hinterthurgau
84xx - Region Winterthur, Tosstal
85xx - Region Frauenfeld, Weinfelden, Amriswil, Romanshorn
86xx - Region Dubendorf, Zurcher Oberland, See (SG)
87xx - Region Right shore of Lake Zurich, Gaster/See (SG), Canton Glarus
88xx - Region Linkes Zurichseeufer, Ausserschwyz (March, Hofe, 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
Switzerland
Switzerland