How Many People Are Named Kaylyn?
An estimated 11,713 people in the United States have the first name Kaylyn. It is almost exclusively a female name. The average bearer is 25 years old, and Kaylyn peaked in popularity in 1994 with 464 births that year.
Below you will find a full statistical profile of Kaylyn 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 Kaylyn paired with any surname.
Estimated Living Americans
11,713
About 1 in 29,263 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
99.7% confidence
Average Age
25
years old
Peak Year
1994
464 births
Total Registered
12,020
since 1880
Gender Distribution for Kaylyn
Kaylyn is almost exclusively a female name. Out of 12,020 total births registered, 99.7% were female.
Kaylyn as a male name
Ranked #13,326 in 2022
5 male births in 2022
Peak: 2004 (7 births)
Kaylyn as a female name
Ranked #2,857 in 2024
58 female births in 2024
Peak: 1997 (462 births)
Kaylyn: Popularity Over Time
SSA records for Kaylyn span from the 1940s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 2000s, when 4,190 babies were registered. Kaylyn has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kaylyn by Decade
How has Kaylyn 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.
Kaylyn by State
Birth registrations for Kaylyn span all 42 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in New Mexico, North Dakota, Alaska. On average, about 229 Kaylyns were registered per state.
Kaylyn + Last Name Combinations
How many people share a full name with Kaylyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kaylyn
Other first names starting with K with a similar number of bearers.
Kaylyn: Questions and Answers
How many people in the U.S. are named Kaylyn?
We estimate approximately 11,713 people named Kaylyn 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 29,263 Americans share this first name.
Is Kaylyn a common name?
Kaylyn is classified as "Uncommon" and is more popular than 97.9% of all first names in the SSA database. A total of 12,020 births have been registered with this name since 1880.
When was Kaylyn most popular?
Kaylyn reached peak popularity in 1994, when 464 babies were given this name. The average age of a living person named Kaylyn is approximately 25 years old, reflecting when the name was most commonly given.
Is Kaylyn a female name?
Kaylyn is predominantly female. 99.7% of people with this name are female. See the gender breakdown above for full details.
How many Kaylyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kaylyn Smith, Kaylyn Johnson, Kaylyn 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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