As of January 2025, there are 61 main regional banks. There is also a category known as "regional banks II", numbering 39 additional institutions (down from 68 in 1990), most of whom "have converted from mutual savings banks to ordinary commercial banks". The regional bank is in contrast to a
city bank (
toshi ginkō 都市銀行 or
togin 都銀) or "megabank" with its head office in metropolitan Tokyo, Nagoya, or Osaka. Each of these banks have a large footprint and a wide network of branches in the larger cities of Japan. They are also different to a
shinkin bank (
shin-yō kinko 信用金庫) which are cooperative regional financial institutions serving small and medium enterprises and local residents. Examples of regional bank mergers include Senshu Bank and Ikeda Bank which merged to form
Senshu Ikeda Bank in May 2010. Another is Kagoshima Bank, which integrated operations with Higo Bank (in
Kumamoto City) in October 2015 under Kyushu Financial Group. In January 2025, Aomori Bank and Michinoku Bank merged their operations, creating the
Aomori Michinoku Bank (株式会社青森みちのく銀行). A future merger between Shonai Bank and Hokuto Bank (into Fidea Bank) is planned for January 2027. ==List==