How Many People Are Named Kayelynn?
An estimated 383 people in the United States have the first name Kayelynn. It is almost exclusively a female name. The average bearer is 17 years old, and Kayelynn peaked in popularity in 2008 with 27 births that year.
Below you will find a full statistical profile of Kayelynn 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 Kayelynn paired with any surname.
Estimated Living Americans
383
About 1 in 894,920 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
17
years old
Peak Year
2008
27 births
Total Registered
388
since 1880
Gender Distribution for Kayelynn
Kayelynn is almost exclusively a female name. Out of 388 total births registered, 100.0% were female.
Kayelynn as a female name
Ranked #10,723 in 2023
9 female births in 2023
Peak: 2008 (27 births)
Kayelynn: Popularity Over Time
SSA records for Kayelynn span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 157 babies were registered. Kayelynn has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Kayelynn by Decade
How has Kayelynn 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.
Kayelynn by State
Kayelynn + Last Name Combinations
How many people share a full name with Kayelynn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kayelynn
Other first names starting with K with a similar number of bearers.
Kayelynn: Questions and Answers
How many people in the U.S. are named Kayelynn?
We estimate approximately 383 people named Kayelynn 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 894,920 Americans share this first name.
Is Kayelynn a common name?
Kayelynn is classified as "Very Rare" and is more popular than 81.9% of all first names in the SSA database. A total of 388 births have been registered with this name since 1880.
When was Kayelynn most popular?
Kayelynn reached peak popularity in 2008, when 27 babies were given this name. The average age of a living person named Kayelynn is approximately 17 years old, reflecting when the name was most commonly given.
Is Kayelynn a female name?
Kayelynn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kayelynn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kayelynn Smith, Kayelynn Johnson, Kayelynn 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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