| | Aadorf | Aadorf | | Zurich: functional urban
area | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Affeltrangen | Affeltrangen | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Altnau | Altnau | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Amlikon-Bissegg | Amlikon-Bissegg | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Amriswil | Amriswil | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Arbon | Arbon | | St. Gallen: functional
urban area | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Basadingen-Schlattingen | Basadingen-Schlattingen | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Berg (TG) | Berg (TG) | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Berlingen | Berlingen | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |
| | Bettwiesen | Bettwiesen | | | Thurgau CH057 | Schweiz/Suisse/Svizzera CH Switzerland |