How Many People Are Named Kayleigh?
An estimated 33,604 people in the United States have the first name Kayleigh. It is almost exclusively a female name. The average bearer is 20 years old, and Kayleigh peaked in popularity in 2009 with 1,449 births that year.
Below you will find a full statistical profile of Kayleigh 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 Kayleigh paired with any surname.
Estimated Living Americans
33,604
About 1 in 10,200 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
100.0% confidence
Average Age
20
years old
Peak Year
2009
1,449 births
Total Registered
34,219
since 1880
Gender Distribution for Kayleigh
Kayleigh is almost exclusively a female name. Out of 34,219 total births registered, 100.0% were female.
Kayleigh as a male name
Ranked #9,465 in 2004
7 male births in 2004
Peak: 2004 (7 births)
Kayleigh as a female name
Ranked #731 in 2024
385 female births in 2024
Peak: 2009 (1,449 births)
Kayleigh: Popularity Over Time
SSA records for Kayleigh span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 11,776 babies were registered. Kayleigh has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kayleigh by Decade
How has Kayleigh 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.
Kayleigh by State
Birth registrations for Kayleigh span all 50 states and territories in the SSA database. The highest counts are in Texas, New York, California. The lowest are in Wyoming, Hawaii, North Dakota. On average, about 659 Kayleighs were registered per state.
Kayleigh + Last Name Combinations
How many people share a full name with Kayleigh as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kayleigh
Other first names starting with K with a similar number of bearers.
Kayleigh: Questions and Answers
How many people in the U.S. are named Kayleigh?
We estimate approximately 33,604 people named Kayleigh 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 10,200 Americans share this first name.
Is Kayleigh a common name?
Kayleigh is classified as "Uncommon" and is more popular than 98.9% of all first names in the SSA database. A total of 34,219 births have been registered with this name since 1880.
When was Kayleigh most popular?
Kayleigh reached peak popularity in 2009, when 1,449 babies were given this name. The average age of a living person named Kayleigh is approximately 20 years old, reflecting when the name was most commonly given.
Is Kayleigh a female name?
Kayleigh is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kayleigh Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kayleigh Smith, Kayleigh Johnson, Kayleigh 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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