How Many People Are Named Rosio?
An estimated 2,361 people in the United States have the first name Rosio. It is predominantly female (99.2%). The average bearer is 37 years old, and Rosio peaked in popularity in 1981 with 118 births that year.
Below you will find a full statistical profile of Rosio as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Rosio paired with any surname.
Estimated Living Americans
2,361
About 1 in 145,173 people in the U.S.
Rarity
Rare
Predicted Gender
Female
99.2% confidence
Average Age
37
years old
Peak Year
1981
118 births
Total Registered
2,493
since 1880
Gender Distribution for Rosio
Rosio is almost exclusively a female name. Out of 2,493 total births registered, 99.2% were female.
Rosio as a male name
Ranked #6,296 in 1988
7 male births in 1988
Peak: 1984 (7 births)
Rosio as a female name
Ranked #17,121 in 2023
5 female births in 2023
Peak: 1981 (118 births)
Rosio: Popularity Over Time
SSA records for Rosio span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1980s, when 764 babies were registered. Rosio has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Rosio by Decade
How has Rosio tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Rosio by State
Birth registrations for Rosio span all 8 states and territories in the SSA database. The highest counts are in California, Texas, Illinois. The lowest are in Washington, North Carolina, New York. On average, about 225 Rosios were registered per state.
Rosio + Last Name Combinations
How many people share a full name with Rosio as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Rosio
Other first names starting with R with a similar number of bearers.
Rosio: Questions and Answers
How many people in the U.S. are named Rosio?
We estimate approximately 2,361 people named Rosio are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 145,173 Americans share this first name.
Is Rosio a common name?
Rosio is classified as "Rare" and is more popular than 94.3% of all first names in the SSA database. A total of 2,493 births have been registered with this name since 1880.
When was Rosio most popular?
Rosio reached peak popularity in 1981, when 118 babies were given this name. The average age of a living person named Rosio is approximately 37 years old, reflecting when the name was most commonly given.
Is Rosio a female name?
Rosio is predominantly female. 99.2% of people with this name are female. See the gender breakdown above for full details.
How many Rosio Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Rosio Smith, Rosio Johnson, Rosio Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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