Yaizu was elevated to city status on March 1, 1951. On November 1, 1953, Toyota Village merged into Yaizu City. The city name gained international prominence over the Daigo Fukuryū Maru Incident, in which a Yaizu-based fishing vessel was irradiated by atomic testing at Bikini Atoll on March 1, 1954. The city further expanded on January 1, 1955, by annexation of the neighboring villages of Higashi Mashizu, Kogawa, Ōtomi, and Wada, and on April 1, 1957, when Hirohata Village was divided between Yaizu and Fujieda cities. Yaizu port underwent a major expansion in March 1968. The city was the site of the 2001 Japan Airlines mid-air incident on January 31, 2001.