| Code | Name | Region |
|---|---|---|
| CHTZE | Utzenstorf | BE |
| CHUZN | Uznach | SG |
| CHUZW | Uzwil | SG |
| CHSVO | Vacallo | TI |
| CHVG3 | Valangin | NE |
| CHVDR | Val-de-ruz | NE |
| CH4VM | Valeyres-sous-montagny | VD |
| CHVLM | Vallamand | VD |
| CHVAL | Vallorbe | VD |
| CHVA5 | Vals | GR |
| CHVDO | Vandoeuvres | GE |
| CHVFN | Vauffelin | BE |
| CHVAU | Vaumarcus | NE |
| CHVEN | Vendlincourt | JU |
| CHVTH | Venthone | VS |
| CHTGI | Turgi | AG |
| CHTUM | Turtmann | VS |
| CHTAN | Twann | BE |
| CHUDL | Udligenswil | LU |
| CHUEN | Ueken | AG |
| CHUER | Uerikon | ZH |
| CHUGN | Uesslingen | TG |
| CHUTF | Uetendorf | BE |
| CHUKS | Uetikon Am See | ZH |
| CHUKN | Uitikon | ZH |
| CHUTR | Unterageri | ZG |
| CHUNB | Unterbach | BE |
| CHUGE | Unterengstringen | ZH |
| CH7AU | Unterentfelden | AG |
| CHUTB | Unteriberg | SZ |
| CHUTK | Unterkulm | AG |
| CHUTS | Unterseen | BE |
| CHUGA | Untersiggenthal | AG |
| CHZUR | Unter-stammheim | ZH |
| CHURD | Urdorf | ZH |
| CHTOF | Toffen | BE |
| CHTHZ | Tolochenaz | VD |
| CHTON | Torgon | VS |
| CHTIC | Torre | TI |
| CHTM2 | Tramelan | BE |
| CHTSD | Trasadingen | SH |
| CHTRA | Travers | NE |
| CHTRX | Trelex | VD |
| CHTRE | Treyvaux | FR |
| CHTNG | Triengen | LU |
| CHTBS | Trimbach | SO |
| CHTRS | Trimmis | GR |
| CHTRI | Trin | GR |
| CHTRT | Troistorrents | VS |
| CHTBH | Trubbach | SG |