Recorded 1912–2025 · United States
Cosette was most popular in 2015, when 141 American babies were given the name — ranking #2,792 that year. In 2025 it ranked #3,252, with 113 births. Across 1880–2025 the Social Security Administration has recorded 3,080 people named Cosette.
Cosette first appears in Social Security Administration records in 1912, which makes it about 113 years old as a recorded American name. It has been recorded in 90 of the 114 years since.
The Social Security Administration has recorded 3,080 American births named Cosette 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 2,889 are estimated to be alive today.
113 American babies were named Cosette in 2025, ranking #3,252 that year.
Cosette is holding steady. Across 2021–2025 it averaged 104 births a year, against 106 a year across 2011–2015 — a change of -1% 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 Cosette is a girl’s name — 100.0% of the 3,080 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% 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 2,889 Americans named Cosette are alive today — 94% of everyone ever recorded with the name. The median is 14 years old, and half are between 8 and 25.
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 Cosette on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org