How Many People Are Named Rio?
An estimated 7,022 people in the United States have the first name Rio. It is used for both genders, with 69.5% male. The average bearer is 14 years old, and Rio peaked in popularity in 2024 with 702 births that year.
Below you will find a full statistical profile of Rio 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 Rio paired with any surname.
Key Insights
- Rio is a modern name. With an average bearer age of just 14, it has gained most of its popularity in recent years.
Estimated Living Americans
7,022
About 1 in 48,811 people in the U.S.
Rarity
Rare
Predicted Gender
Male
69.5% confidence
Average Age
14
years old
Peak Year
2024
702 births
Total Registered
7,139
since 1880
Gender Distribution for Rio
Rio is a genuinely unisex name, used for both males (69.5%) and females (30.5%). Out of 7,139 total births registered, 4,962 were male and 2,177 were female.
Rio as a male name
Ranked #516 in 2024
591 male births in 2024
Peak: 2024 (591 births)
Rio as a female name
Ranked #1,813 in 2024
111 female births in 2024
Peak: 2021 (124 births)
Rio: Popularity Over Time
SSA records for Rio span from the 1920s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 2020s, when 2,892 babies were registered. Rio remains highly popular today, with recent registration numbers near its historical peak.
Rio by Decade
How has Rio 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.
Rio by State
Birth registrations for Rio span all 37 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Rhode Island, Oklahoma, Idaho. On average, about 111 Rios were registered per state.
Rio + Last Name Combinations
How many people share a full name with Rio as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Rio
Other first names starting with R with a similar number of bearers.
Rio: Questions and Answers
How many people in the U.S. are named Rio?
We estimate approximately 7,022 people named Rio 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 48,811 Americans share this first name.
Is Rio a common name?
Rio is classified as "Rare" and is more popular than 97.2% of all first names in the SSA database. A total of 7,139 births have been registered with this name since 1880.
When was Rio most popular?
Rio reached peak popularity in 2024, when 702 babies were given this name. The average age of a living person named Rio is approximately 14 years old, reflecting when the name was most commonly given.
Is Rio a male name?
Rio is predominantly male. 69.5% of people with this name are male. See the gender breakdown above for full details.
How many Rio Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Rio Smith, Rio Johnson, Rio 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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