How Many People Are Named Kailah?
An estimated 2,201 people in the United States have the first name Kailah. It is almost exclusively a female name. The average bearer is 21 years old, and Kailah peaked in popularity in 2002 with 99 births that year.
Below you will find a full statistical profile of Kailah 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 Kailah paired with any surname.
Estimated Living Americans
2,201
About 1 in 155,727 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
21
years old
Peak Year
2002
99 births
Total Registered
2,240
since 1880
Gender Distribution for Kailah
Kailah is almost exclusively a female name. Out of 2,240 total births registered, 100.0% were female.
Kailah as a female name
Ranked #4,233 in 2024
34 female births in 2024
Peak: 2002 (99 births)
Kailah: Popularity Over Time
SSA records for Kailah span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 869 babies were registered. Kailah has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kailah by Decade
How has Kailah 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.
Kailah by State
Birth registrations for Kailah span all 18 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in Washington, Tennessee, New Mexico. On average, about 49 Kailahs were registered per state.
Kailah + Last Name Combinations
How many people share a full name with Kailah as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kailah
Other first names starting with K with a similar number of bearers.
Kailah: Questions and Answers
How many people in the U.S. are named Kailah?
We estimate approximately 2,201 people named Kailah 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 155,727 Americans share this first name.
Is Kailah a common name?
Kailah is classified as "Rare" and is more popular than 94.1% of all first names in the SSA database. A total of 2,240 births have been registered with this name since 1880.
When was Kailah most popular?
Kailah reached peak popularity in 2002, when 99 babies were given this name. The average age of a living person named Kailah is approximately 21 years old, reflecting when the name was most commonly given.
Is Kailah a female name?
Kailah is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kailah Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kailah Smith, Kailah Johnson, Kailah 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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