How Many People Are Named Kleo?
An estimated 359 people in the United States have the first name Kleo. It is predominantly female (92.0%). The average bearer is 6 years old, and Kleo peaked in popularity in 2024 with 65 births that year.
Below you will find a full statistical profile of Kleo 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 Kleo paired with any surname.
Estimated Living Americans
359
About 1 in 954,747 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
92.0% confidence
Average Age
6
years old
Peak Year
2024
65 births
Total Registered
361
since 1880
Gender Distribution for Kleo
Kleo is predominantly female (92.0%), though 29 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Kleo as a male name
Ranked #10,420 in 2024
7 male births in 2024
Peak: 2023 (10 births)
Kleo as a female name
Ranked #2,858 in 2024
58 female births in 2024
Peak: 2024 (58 births)
Kleo: Popularity Over Time
SSA records for Kleo span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2020s, when 245 babies were registered. Kleo remains highly popular today, with recent registration numbers near its historical peak.
Kleo by Decade
How has Kleo 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.
Kleo by State
Kleo + Last Name Combinations
How many people share a full name with Kleo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kleo
Other first names starting with K with a similar number of bearers.
Kleo: Questions and Answers
How many people in the U.S. are named Kleo?
We estimate approximately 359 people named Kleo 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 954,747 Americans share this first name.
Is Kleo a common name?
Kleo is classified as "Very Rare" and is more popular than 81.2% of all first names in the SSA database. A total of 361 births have been registered with this name since 1880.
When was Kleo most popular?
Kleo reached peak popularity in 2024, when 65 babies were given this name. The average age of a living person named Kleo is approximately 6 years old, reflecting when the name was most commonly given.
Is Kleo a female name?
Kleo is predominantly female. 92.0% of people with this name are female. See the gender breakdown above for full details.
How many Kleo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kleo Smith, Kleo Johnson, Kleo 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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