Recorded 1930–2025 · United States
Joslyn was most popular in 2010, when 461 American babies were given the name — ranking #1,192 that year. In 2025 it ranked #4,792, with 63 births. Across 1880–2025 the Social Security Administration has recorded 11,255 people named Joslyn.
Joslyn first appears in Social Security Administration records in 1930, which makes it about 95 years old as a recorded American name. It has been recorded in 82 of the 96 years since.
The Social Security Administration has recorded 11,255 American births named Joslyn 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 10,991 are estimated to be alive today.
63 American babies were named Joslyn in 2025, ranking #4,792 that year.
Joslyn is falling. Across 2021–2025 it averaged 106 births a year, against 378 a year across 2011–2015 — a change of -72% 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 Joslyn is a girl’s name — 99.8% of the 11,255 Americans given it were girls and 0.2% 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 10,991 Americans named Joslyn are alive today — 98% of everyone ever recorded with the name. The median is 20 years old, and half are between 14 and 31.
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 Joslyn on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org