Eternity
Recorded 1990–2025 · United States
Eternity was most popular in 2009, when 103 American babies were given the name — ranking #3,520 that year. In 2025 it ranked #4,142, with 79 births. Across 1880–2025 the Social Security Administration has recorded 2,225 people named Eternity.
Eternity over time
How old is the name Eternity?
Eternity first appears in Social Security Administration records in 1990, which makes it about 35 years old as a recorded American name. It has been recorded in 36 of the 36 years since.
How many people are named Eternity?
The Social Security Administration has recorded 2,225 American births named Eternity 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 2,206 are estimated to be alive today.
How many babies were named Eternity in 2025?
79 American babies were named Eternity in 2025, ranking #4,142 that year.
Is Eternity getting more or less popular?
Eternity is holding steady. Across 2021–2025 it averaged 82 births a year, against 84 a year across 2011–2015 — a change of -3% 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.
Is Eternity a boy’s or a girl’s name?
Across the whole record Eternity is a girl’s name — 100.0% of the 2,225 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.
How old is someone named Eternity?
Roughly 2,206 Americans named Eternity are alive today — 99% of everyone ever recorded with the name. The median is 14 years old, and half are between 7 and 21.
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.
Where Eternity is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Eternity on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org