How Many People Are Named Kaelyn?
An estimated 15,286 people in the United States have the first name Kaelyn. It is predominantly female (99.5%). The average bearer is 19 years old, and Kaelyn peaked in popularity in 2009 with 1,006 births that year.
Below you will find a full statistical profile of Kaelyn 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 Kaelyn paired with any surname.
Key Insights
- While Kaelyn is overwhelmingly female, 82 male births have been registered with this name since 1880.
Estimated Living Americans
15,286
About 1 in 22,423 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
99.5% confidence
Average Age
19
years old
Peak Year
2009
1,006 births
Total Registered
15,517
since 1880
Gender Distribution for Kaelyn
Kaelyn is almost exclusively a female name. Out of 15,517 total births registered, 99.5% were female.
Kaelyn as a male name
Ranked #13,174 in 2024
5 male births in 2024
Peak: 1995 (13 births)
Kaelyn as a female name
Ranked #1,636 in 2024
126 female births in 2024
Peak: 2009 (997 births)
Kaelyn: Popularity Over Time
SSA records for Kaelyn span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 2000s, when 6,484 babies were registered. Kaelyn has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kaelyn by Decade
How has Kaelyn 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.
Kaelyn by State
Birth registrations for Kaelyn span all 46 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Rhode Island, Alaska, North Dakota. On average, about 295 Kaelyns were registered per state.
Kaelyn + Last Name Combinations
How many people share a full name with Kaelyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kaelyn
Other first names starting with K with a similar number of bearers.
Kaelyn: Questions and Answers
How many people in the U.S. are named Kaelyn?
We estimate approximately 15,286 people named Kaelyn 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 22,423 Americans share this first name.
Is Kaelyn a common name?
Kaelyn is classified as "Uncommon" and is more popular than 98.2% of all first names in the SSA database. A total of 15,517 births have been registered with this name since 1880.
When was Kaelyn most popular?
Kaelyn reached peak popularity in 2009, when 1,006 babies were given this name. The average age of a living person named Kaelyn is approximately 19 years old, reflecting when the name was most commonly given.
Is Kaelyn a female name?
Kaelyn is predominantly female. 99.5% of people with this name are female. See the gender breakdown above for full details.
How many Kaelyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kaelyn Smith, Kaelyn Johnson, Kaelyn 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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