How Many People Are Named Cylus?
An estimated 862 people in the United States have the first name Cylus. It is almost exclusively a male name. The average bearer is 11 years old, and Cylus peaked in popularity in 2012 with 77 births that year.
Below you will find a full statistical profile of Cylus 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 Cylus paired with any surname.
Estimated Living Americans
862
About 1 in 397,627 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
11
years old
Peak Year
2012
77 births
Total Registered
869
since 1880
Gender Distribution for Cylus
Cylus is almost exclusively a male name. Out of 869 total births registered, 100.0% were male.
Cylus as a male name
Ranked #3,802 in 2024
29 male births in 2024
Peak: 2012 (77 births)
Cylus: Popularity Over Time
SSA records for Cylus span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 544 babies were registered. While Cylus is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Cylus by Decade
How has Cylus 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.
Cylus by State
Birth registrations for Cylus span all 9 states and territories in the SSA database. The highest counts are in Texas, California, Ohio. The lowest are in Pennsylvania, Oregon, Indiana. On average, about 15 Cyluss were registered per state.
Cylus + Last Name Combinations
How many people share a full name with Cylus as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cylus
Other first names starting with C with a similar number of bearers.
Cylus: Questions and Answers
How many people in the U.S. are named Cylus?
We estimate approximately 862 people named Cylus 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 397,627 Americans share this first name.
Is Cylus a common name?
Cylus is classified as "Very Rare" and is more popular than 89.1% of all first names in the SSA database. A total of 869 births have been registered with this name since 1880.
When was Cylus most popular?
Cylus reached peak popularity in 2012, when 77 babies were given this name. The average age of a living person named Cylus is approximately 11 years old, reflecting when the name was most commonly given.
Is Cylus a male name?
Cylus is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Cylus Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cylus Smith, Cylus Johnson, Cylus 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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