How Many People Are Named Keilyn?
An estimated 1,403 people in the United States have the first name Keilyn. It is used for both genders, with 83.4% female. The average bearer is 14 years old, and Keilyn peaked in popularity in 2011 with 82 births that year.
Below you will find a full statistical profile of Keilyn 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 Keilyn paired with any surname.
Key Insights
- Keilyn is a modern name. With an average bearer age of just 14, it has gained most of its popularity in recent years.
Estimated Living Americans
1,403
About 1 in 244,301 people in the U.S.
Rarity
Rare
Predicted Gender
Female
83.4% confidence
Average Age
14
years old
Peak Year
2011
82 births
Total Registered
1,418
since 1880
Gender Distribution for Keilyn
Keilyn is predominantly female (83.4%), though 236 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Keilyn as a male name
Ranked #11,642 in 2024
6 male births in 2024
Peak: 2011 (20 births)
Keilyn as a female name
Ranked #3,415 in 2024
46 female births in 2024
Peak: 2009 (63 births)
Keilyn: Popularity Over Time
SSA records for Keilyn span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2010s, when 591 babies were registered. While Keilyn is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Keilyn by Decade
How has Keilyn 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.
Keilyn by State
Birth registrations for Keilyn span all 7 states and territories in the SSA database. The highest counts are in Texas, New York, California. The lowest are in Georgia, Virginia, New Jersey. On average, about 67 Keilyns were registered per state.
Keilyn + Last Name Combinations
How many people share a full name with Keilyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Keilyn
Other first names starting with K with a similar number of bearers.
Keilyn: Questions and Answers
How many people in the U.S. are named Keilyn?
We estimate approximately 1,403 people named Keilyn 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 244,301 Americans share this first name.
Is Keilyn a common name?
Keilyn is classified as "Rare" and is more popular than 92.1% of all first names in the SSA database. A total of 1,418 births have been registered with this name since 1880.
When was Keilyn most popular?
Keilyn reached peak popularity in 2011, when 82 babies were given this name. The average age of a living person named Keilyn is approximately 14 years old, reflecting when the name was most commonly given.
Is Keilyn a female name?
Keilyn is predominantly female. 83.4% of people with this name are female. See the gender breakdown above for full details.
How many Keilyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Keilyn Smith, Keilyn Johnson, Keilyn 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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