Stations on the Aizu Railways Line 

In order from North to South (Main stations in bold)

Aizuwakamatsu Station* 会津若松駅 *
Nishi-Wakamatsu Station 西若松駅
Minami-Wakamatsu Station 南若松駅
Monden Station 門田駅
Amaya Station あまや駅
Ashinomaki Onsen Station 芦ノ牧温泉駅
Ashinomaki Onsen Minami Station 芦ノ牧温泉南駅
Okawadamu Koen Station 大川ダム公園駅
Yunokami Onsen Station 湯野上温泉駅
Tonohetsuri Station 塔のへつり駅
Yagoshima Station 弥五島駅
Aizu Shimogo Station 会津下郷駅
Furusato Koen Station ふるさと公園駅
Yoson Koen Station 養鱒公園駅
Aizu Nagano Station 会津長野駅
Tajima koko Mae Station 田島高校前駅
Aizu-Tajima Station 会津田島
Naka Arai Station 中荒井駅
Aizu-Arakai Station 会津荒海駅
Aizu-Sanson Dojo Station 会津山村道場駅
Nanatsugatake Tozanguchi Station 七ヶ岳登山口駅
Aizu Kogen Ozeguchi Station 会津高原尾瀬口駅

*Aizuwakamatsu Station is not technically on the Aizu Railway Line. Aizuwakamatsu Station and Nishi-Wakamatsu Station are joined via the JR Tadami Line, but you can get on a train from Aizu-Wakamatsu and head the whole way to Tajima, so I included Aizuwakamatsu Station in this list.