How Many People Are Named Clio?
An estimated 638 people in the United States have the first name Clio. It is predominantly female (97.1%). The average bearer is 16 years old, and Clio peaked in popularity in 2015 with 37 births that year.
Below you will find a full statistical profile of Clio 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 Clio paired with any surname.
Estimated Living Americans
638
About 1 in 537,233 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
97.1% confidence
Average Age
16
years old
Peak Year
2015
37 births
Total Registered
856
since 1880
Gender Distribution for Clio
Clio is predominantly female (97.1%), though 25 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Clio as a male name
Ranked #3,061 in 1933
7 male births in 1933
Peak: 1930 (7 births)
Clio as a female name
Ranked #5,973 in 2024
20 female births in 2024
Peak: 2015 (37 births)
Clio: Popularity Over Time
SSA records for Clio span from the 1890s to the 2020s, covering 11 decades of naming data. The most popular decade for this name was the 2010s, when 256 babies were registered. While Clio is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Clio by Decade
How has Clio 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.
Clio by State
Birth registrations for Clio span all 4 states and territories in the SSA database. The highest counts are in California, New York, Massachusetts. The lowest are in Texas, Massachusetts, New York. On average, about 28 Clios were registered per state.
Clio + Last Name Combinations
How many people share a full name with Clio as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Clio
Other first names starting with C with a similar number of bearers.
Clio: Questions and Answers
How many people in the U.S. are named Clio?
We estimate approximately 638 people named Clio 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 537,233 Americans share this first name.
Is Clio a common name?
Clio is classified as "Very Rare" and is more popular than 86.8% of all first names in the SSA database. A total of 856 births have been registered with this name since 1880.
When was Clio most popular?
Clio reached peak popularity in 2015, when 37 babies were given this name. The average age of a living person named Clio is approximately 16 years old, reflecting when the name was most commonly given.
Is Clio a female name?
Clio is predominantly female. 97.1% of people with this name are female. See the gender breakdown above for full details.
How many Clio Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Clio Smith, Clio Johnson, Clio 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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