Kiyo Komatsu

Supercentenarian data for Japan

• Full name: Kiyo Komatsu (Japanese: 小松 きよ)
• Lifespan: (27.01.1911 – 10.03.2025)
• Age: 114 years, 42 days
• Birthplace: Kuroshima Village, Ishikawa Prefecture, Japan
• Last residence: Asaka, Saitama Prefecture, Japan
• Application date: 14.09.2024
• Validation date: 09.10.2024
• Validation source: MHLW Japan/Waclaw Jan Kroczek

Biography

Kiyo Komatu was born in Kuroshima Village (now Wajima City), Ishikawa Prefecture, Japan on 27 January 1911. She was the eldest of five children, with four younger brothers, and was the daughter of a chief fisherman.

In her late 20s, she married a man from her hometown who was the same age as her. The couple moved to Tokyo for her husband’s work. During World War II, she evacuated with their daughter to her parents’ home in Ishikawa Prefecture. Her husband was killed in action.

In her later years, she devoted herself to supporting her daughter and her family, staying busy with household chores, shopping, and caring for her grandchildren while her daughter and son-in-law were at work. She continued these activities well into her 80s.

At the age of 109, she broke her femur, but after two weeks in the hospital and a month of rehabilitation at home, she recovered enough to climb stairs again.

On 27 January 2021, she celebrated her 110th birthday, becoming a supercentenarian.

On 26 August 2024, following the death of 114-year-old Hisako Shiroishi, she became the oldest living person in Saitama Prefecture.

Kiyo Komatsu passed away on March 10 2025, aged 114 years, 42 days.

Longevity recognition

• Oldest living person in Saitama Prefecture (26.08.2024 – 10.03.2025)

Validation

Her age was verified by the MHLW Japan and Waclaw Jan Kroczek, and validated by the Gerontology Research Group (GRG) on 9 October 2024.

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