Recorded 1906–2025 · United States
Hadley was most popular in 2014, when 3,060 American babies were given the name — ranking #237 that year. In 2025 it ranked #291, with 2,266 births. Across 1880–2025 the Social Security Administration has recorded 48,691 people named Hadley.
Hadley first appears in Social Security Administration records in 1906, which makes it about 119 years old as a recorded American name. It has been recorded in 119 of the 120 years since.
The Social Security Administration has recorded 48,691 American births named Hadley 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 47,747 are estimated to be alive today.
2,266 American babies were named Hadley in 2025, ranking #291 that year.
Hadley is holding steady. Across 2021–2025 it averaged 2,417 births a year, against 2,642 a year across 2011–2015 — a change of -9% 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 Hadley is a girl’s name — 95.7% of the 48,691 Americans given it were girls and 4.3% were boys. It changed hands: since 1973 it has gone mainly to girls, having gone mainly to boys before that. In births since 2016 it is 99% girls and 1% 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 47,747 Americans named Hadley are alive today — 98% of everyone ever recorded with the name. The median is 10 years old, and half are between 5 and 14. That is a narrow band because Hadley is a young name — it only became common recently, so almost everyone carrying it is still a child or a young adult.
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 Hadley on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org