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How Many People Are Named Killian?
Estimated people named Killian living in the U.S. today
15,847
Gender distribution
96% male · 4% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 16,046
- Peak year: 2017 (1,527 births)
- Estimated living today: 15,847
Killian by age group — who carries the name today?
Killian popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Killian
Killian has been recorded by the Social Security Administration since the 19th century dataset began. In total, 16,046 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 15,847 bearers are still living — roughly 1 in 21,569 Americans. The name's strongest decade shapes how old most Killians 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 Killian in the US?
An estimated 15,847 people named Killian are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Killian rare — about 1 in 21,569 Americans.
Is Killian a boy or girl name?
In SSA records, Killian is 96% male and 4% female, so it is predominantly a male name.
When was Killian most popular?
Killian peaked in 2017, when 1,527 babies were given the name. Its current trend is rising compared with the previous decade.
How rare is the name Killian?
Killian ranks #1,817 of 104,819 first names recorded by the SSA, with a rarity score of 51 out of 100 (higher means rarer).