Recorded 1922–2025 · United States
Megan was most popular in 1990, when 20,303 American babies were given the name — ranking #35 that year. In 2025 it ranked #1,683, with 301 births. Across 1880–2025 the Social Security Administration has recorded 441,169 people named Megan.
Megan first appears in Social Security Administration records in 1922, which makes it about 103 years old as a recorded American name. It has been recorded in 97 of the 104 years since.
The Social Security Administration has recorded 441,169 American births named Megan 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 430,486 are estimated to be alive today.
301 American babies were named Megan in 2025, ranking #1,683 that year.
Megan is falling. Across 2021–2025 it averaged 395 births a year, against 1,329 a year across 2011–2015 — a change of -70% 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 Megan is a girl’s name — 99.8% of the 441,169 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 430,486 Americans named Megan are alive today — 98% of everyone ever recorded with the name. The median is 35 years old, and half are between 29 and 41. That is a narrow band: Megan arrived and faded within about a decade rather than staying in steady use.
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.
Welsh · diminutive of Margaret, "pearl"
How much more common the name is in each state than across the country as a whole.
See Megan on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org