How Many People Are Named Ciaran?
An estimated 2,093 people in the United States have the first name Ciaran. It is predominantly male (98.6%). The average bearer is 17 years old, and Ciaran peaked in popularity in 2024 with 92 births that year.
Below you will find a full statistical profile of Ciaran 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 Ciaran paired with any surname.
Key Insights
- Ciaran is a modern name. With an average bearer age of just 17, it has gained most of its popularity in recent years.
Estimated Living Americans
2,093
About 1 in 163,762 people in the U.S.
Rarity
Rare
Predicted Gender
Male
98.6% confidence
Average Age
17
years old
Peak Year
2024
92 births
Total Registered
2,122
since 1880
Gender Distribution for Ciaran
Ciaran is predominantly male (98.6%), though 30 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Ciaran as a male name
Ranked #1,776 in 2024
92 male births in 2024
Peak: 2024 (92 births)
Ciaran as a female name
Ranked #15,812 in 2008
6 female births in 2008
Peak: 1971 (7 births)
Ciaran: Popularity Over Time
SSA records for Ciaran span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 2010s, when 688 babies were registered. While Ciaran is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Ciaran by Decade
How has Ciaran 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.
Ciaran by State
Birth registrations for Ciaran span all 14 states and territories in the SSA database. The highest counts are in New York, California, Pennsylvania. The lowest are in Wisconsin, Georgia, North Carolina. On average, about 57 Ciarans were registered per state.
Ciaran + Last Name Combinations
How many people share a full name with Ciaran as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Ciaran
Other first names starting with C with a similar number of bearers.
Ciaran: Questions and Answers
How many people in the U.S. are named Ciaran?
We estimate approximately 2,093 people named Ciaran 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 163,762 Americans share this first name.
Is Ciaran a common name?
Ciaran is classified as "Rare" and is more popular than 93.9% of all first names in the SSA database. A total of 2,122 births have been registered with this name since 1880.
When was Ciaran most popular?
Ciaran reached peak popularity in 2024, when 92 babies were given this name. The average age of a living person named Ciaran is approximately 17 years old, reflecting when the name was most commonly given.
Is Ciaran a male name?
Ciaran is predominantly male. 98.6% of people with this name are male. See the gender breakdown above for full details.
How many Ciaran Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Ciaran Smith, Ciaran Johnson, Ciaran 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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