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How Many People Are Named Kai?
Estimated people named Kai living in the U.S. today
73,549
Gender distribution
89% male · 11% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 74,652
- Peak year: 2022 (5,724 births)
- Estimated living today: 73,549
Kai by age group — who carries the name today?
Kai popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Kai
Kai has been recorded by the Social Security Administration since the 19th century dataset began. In total, 74,652 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 73,549 bearers are still living — roughly 1 in 4,647 Americans. The name's strongest decade shapes how old most Kais you meet will be, which the age-group breakdown above shows directly. All figures are statistical estimates from public records; see our methodology for sources, the survival model, and the limits of the data (names given to fewer than five babies in a year are not published by the SSA).
Frequently asked questions
How many people are named Kai in the US?
An estimated 73,549 people named Kai are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Kai rare — about 1 in 4,647 Americans.
Is Kai a boy or girl name?
In SSA records, Kai is 89% male and 11% female, so it is predominantly a male name.
When was Kai most popular?
Kai peaked in 2022, when 5,724 babies were given the name. Its current trend is rising compared with the previous decade.
How rare is the name Kai?
Kai ranks #682 of 104,819 first names recorded by the SSA, with a rarity score of 43 out of 100 (higher means rarer).