How many places in Switzerland are called bunker?

There is one place named bunker in Switzerland.

All places in the world called "bunker".

Location bunker:

• Valais

Cities

Au (4)
Wiler (4)
Buchen (3)
Kulm (3)
Oberdorf (3)
Burglen (3)
Oberwil (3)
Ried (3)
Oberried (3)
Aesch (3)
Ruti (3)
Blatten (3)
Stein (3)
Buren (3)
Langnau (3)
Schlatt (3)
Munster (3)
Stalden (3)
Gadmen (2)
Ober Stafel (2)
Sankt Niklaus (2)
Villa (2)
Crans (2)
Gyrenbad (2)
Lutschental (2)
Rickenbach (2)
Speicher (2)
Wil (2)
Brienz (2)
Feldmoos (2)