How Many People Are Named Kaydn?
An estimated 303 people in the United States have the first name Kaydn. It is used for both genders, with 80.7% male. The average bearer is 16 years old, and Kaydn peaked in popularity in 2009 with 37 births that year.
Below you will find a full statistical profile of Kaydn 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 Kaydn paired with any surname.
Estimated Living Americans
303
About 1 in 1,131,202 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
80.7% confidence
Average Age
16
years old
Peak Year
2009
37 births
Total Registered
306
since 1880
Gender Distribution for Kaydn
Kaydn is predominantly male (80.7%), though 59 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Kaydn as a male name
Ranked #13,232 in 2024
5 male births in 2024
Peak: 2009 (29 births)
Kaydn as a female name
Ranked #17,928 in 2013
5 female births in 2013
Peak: 2006 (8 births)
Kaydn: Popularity Over Time
SSA records for Kaydn span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2000s, when 157 babies were registered. Kaydn has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kaydn by Decade
How has Kaydn 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.
Kaydn + Last Name Combinations
How many people share a full name with Kaydn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kaydn
Other first names starting with K with a similar number of bearers.
Kaydn: Questions and Answers
How many people in the U.S. are named Kaydn?
We estimate approximately 303 people named Kaydn 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 1,131,202 Americans share this first name.
Is Kaydn a common name?
Kaydn is classified as "Very Rare" and is more popular than 79.3% of all first names in the SSA database. A total of 306 births have been registered with this name since 1880.
When was Kaydn most popular?
Kaydn reached peak popularity in 2009, when 37 babies were given this name. The average age of a living person named Kaydn is approximately 16 years old, reflecting when the name was most commonly given.
Is Kaydn a male name?
Kaydn is predominantly male. 80.7% of people with this name are male. See the gender breakdown above for full details.
How many Kaydn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kaydn Smith, Kaydn Johnson, Kaydn 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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