Recorded 1996–2025 · United States
Koen was most popular in 2023, when 468 American babies were given the name — ranking #1,234 that year. In 2025 it ranked #1,256, with 453 births. Across 1880–2025 the Social Security Administration has recorded 5,190 people named Koen.
Koen first appears in Social Security Administration records in 1996, which makes it about 29 years old as a recorded American name. It has been recorded in 30 of the 30 years since.
The Social Security Administration has recorded 5,190 American births named Koen between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 5,143 are estimated to be alive today.
453 American babies were named Koen in 2025, ranking #1,256 that year.
Koen is rising. Across 2021–2025 it averaged 371 births a year, against 188 a year across 2011–2015 — a change of +97% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Koen is a boy’s name — 0.4% of the 5,190 Americans given it were girls and 99.6% were boys. In births since 2016 it is 1% girls and 99% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
Roughly 5,143 Americans named Koen are alive today — 99% of everyone ever recorded with the name. The median is 10 years old, and half are between 3 and 17.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
How much more common the name is in each state than across the country as a whole.
See Koen on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org