Although the bank’s core business comes from Akita prefecture, various branches are situated outside of the area.

These include Koriyama, Sapporo, Morioka, Sendai, and Tokyo.

The bank was noted for its initial reluctance to establish a wide ATM network, finally implementing one in January 2003.

The forerunner of the Aomori Bank was The 48th National Bank (第四十八国立銀行, Dai-Yonjūhachi Kokuritsu Ginkō), established January 20, 1879.

The bank was listed on the second section of the Tokyo Stock Exchange from April 1973, and of the first section of the Tokyo Stock Exchange from April 1974.