Recorded 1950–2025 · United States
Kasey was most popular in 1990, when 1,800 American babies were given the name — ranking #336 that year. In 2025 it ranked #1,758, with 285 births. Across 1880–2025 the Social Security Administration has recorded 45,949 people named Kasey.
Kasey first appears in Social Security Administration records in 1950, which makes it about 75 years old as a recorded American name. It has been recorded in 74 of the 76 years since.
The Social Security Administration has recorded 45,949 American births named Kasey 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 44,692 are estimated to be alive today.
285 American babies were named Kasey in 2025, ranking #1,758 that year.
Kasey is holding steady. Across 2021–2025 it averaged 290 births a year, against 385 a year across 2011–2015 — a change of -25% 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 Kasey is a unisex name — 72.5% of the 45,949 Americans given it were girls and 27.5% were boys. It changed hands: since 2023 it has gone mainly to boys, having gone mainly to girls before that. In births since 2016 it is 56% girls and 44% 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 44,692 Americans named Kasey are alive today — 97% of everyone ever recorded with the name. The median is 34 years old, and half are between 25 and 40.
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 Kasey on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org