 On 22 September 1937, Mykolaiv Oblast split off Odessa Oblast, and Tylihulo-Berezanka Raion became part of newly created Mykolaiv Oblast.In January 1963, during the abortive Khrushchyov administrative reform, Tylihulo-Berezanka Raion was abolished, and Berezanka was included into Mykolaiv Raion.In 1966, Berezanka Raion was re-established in the area previously occupied by Tylihulo-Berezanka Raion.