How Many People Are Named Caylyn?
An estimated 436 people in the United States have the first name Caylyn. It is almost exclusively a female name. The average bearer is 23 years old, and Caylyn peaked in popularity in 2009 with 27 births that year.
Below you will find a full statistical profile of Caylyn 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 Caylyn paired with any surname.
Estimated Living Americans
436
About 1 in 786,134 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
23
years old
Peak Year
2009
27 births
Total Registered
445
since 1880
Gender Distribution for Caylyn
Caylyn is almost exclusively a female name. Out of 445 total births registered, 100.0% were female.
Caylyn as a female name
Ranked #10,431 in 2020
9 female births in 2020
Peak: 2009 (27 births)
Caylyn: Popularity Over Time
SSA records for Caylyn span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 175 babies were registered. Caylyn has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Caylyn by Decade
How has Caylyn 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.
Caylyn by State
Caylyn + Last Name Combinations
How many people share a full name with Caylyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Caylyn
Other first names starting with C with a similar number of bearers.
Caylyn: Questions and Answers
How many people in the U.S. are named Caylyn?
We estimate approximately 436 people named Caylyn 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 786,134 Americans share this first name.
Is Caylyn a common name?
Caylyn is classified as "Very Rare" and is more popular than 83.2% of all first names in the SSA database. A total of 445 births have been registered with this name since 1880.
When was Caylyn most popular?
Caylyn reached peak popularity in 2009, when 27 babies were given this name. The average age of a living person named Caylyn is approximately 23 years old, reflecting when the name was most commonly given.
Is Caylyn a female name?
Caylyn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Caylyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Caylyn Smith, Caylyn Johnson, Caylyn 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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