A
- (Tōkamachi-shi) Akatani
- (Sado Shi) Agata
- (Sado Shi) Aono
- (Sado Shi) Aikawa-ōura
- (Sado Shi) Aikawa-kabuse
- (Murakami Shi) Arashima
- (Tainai Shi) Araihama
- (Murakami Shi) Arakawa
- (Sado Shi) Akadama
- (Higashikambara-gun) Araya
- (Tōkamachi-shi) Azamihira
- (Tōkamachi-shi) Atema
- (Uonuma Shi) Aratsuna
- (Niigata Shi) Ajikata
- (Niigata Shi) Aoyama
- (Nakaōnuma-gun) Akasawa
- (Minamiōnuma-gun) Asagai
- (Itoigawa Shi) Agero
- (Jōetsu Shi) Arimagawa
- (Sanjō Shi) Arasawa
- (Murakami Shi) Arakawaguchi
- (Shibata Shi) Arakawa
- (Kariwa-gun) Arahama
- (Tsubame Shi) Aōzu
- (Santō-gun) Amaze
- (Nakaōnuma-gun) Akinari
- (Niigata Shi) Akatsuka
- (Myoko-shi) Akakura
- (Sado Shi) Akadomari
- (Kitakambara-gun) Ajirohama