How Many People Are Named Cailynn?
An estimated 1,152 people in the United States have the first name Cailynn. It is almost exclusively a female name. The average bearer is 16 years old, and Cailynn peaked in popularity in 2009 with 68 births that year.
Below you will find a full statistical profile of Cailynn 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 Cailynn paired with any surname.
Key Insights
- Cailynn is a modern name. With an average bearer age of just 16, it has gained most of its popularity in recent years.
Estimated Living Americans
1,152
About 1 in 297,530 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
16
years old
Peak Year
2009
68 births
Total Registered
1,166
since 1880
Gender Distribution for Cailynn
Cailynn is almost exclusively a female name. Out of 1,166 total births registered, 100.0% were female.
Cailynn as a female name
Ranked #5,033 in 2024
26 female births in 2024
Peak: 2009 (68 births)
Cailynn: Popularity Over Time
SSA records for Cailynn span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 529 babies were registered. Cailynn has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Cailynn by Decade
How has Cailynn 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.
Cailynn by State
Birth registrations for Cailynn span all 9 states and territories in the SSA database. The highest counts are in Texas, Florida, California. The lowest are in Michigan, Louisiana, Georgia. On average, about 20 Cailynns were registered per state.
Cailynn + Last Name Combinations
How many people share a full name with Cailynn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cailynn
Other first names starting with C with a similar number of bearers.
Cailynn: Questions and Answers
How many people in the U.S. are named Cailynn?
We estimate approximately 1,152 people named Cailynn 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 297,530 Americans share this first name.
Is Cailynn a common name?
Cailynn is classified as "Rare" and is more popular than 91% of all first names in the SSA database. A total of 1,166 births have been registered with this name since 1880.
When was Cailynn most popular?
Cailynn reached peak popularity in 2009, when 68 babies were given this name. The average age of a living person named Cailynn is approximately 16 years old, reflecting when the name was most commonly given.
Is Cailynn a female name?
Cailynn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cailynn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cailynn Smith, Cailynn Johnson, Cailynn 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 0 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau estimate. Full methodology.
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