Rosio
Recorded 1963–2023 · United States
Rosio was most popular in 1981, when 118 American babies were given the name — ranking #1,903 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 2,493 people named Rosio.
Rosio over time
How old is the name Rosio?
Rosio first appears in Social Security Administration records in 1963, which makes it about 62 years old as a recorded American name. It has been recorded in 55 of the 63 years since.
How many people are named Rosio?
The Social Security Administration has recorded 2,493 American births named Rosio 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 2,422 are estimated to be alive today.
How many babies were named Rosio in 2025?
Rosio was not recorded in 2025. The SSA withholds any name given to fewer than five babies in a year, so fewer than five American babies were given it.
Is Rosio getting more or less popular?
Rosio is too rare for a direction to mean much. It averaged 5 births a year across 2021–2025 against 10 a year a decade earlier — at these counts a single baby moves the percentage, and any year under five births is withheld at source.
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 Rosio a boy’s or a girl’s name?
Across the whole record Rosio is a girl’s name — 99.2% of the 2,493 Americans given it were girls and 0.8% 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 Rosio?
Roughly 2,422 Americans named Rosio are alive today — 97% of everyone ever recorded with the name. The median is 37 years old, and half are between 30 and 46.
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 Rosio is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Rosio on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org