How Many People Are Named Kaizlee?
An estimated 280 people in the United States have the first name Kaizlee. It is almost exclusively a female name. The average bearer is 8 years old, and Kaizlee peaked in popularity in 2018 with 32 births that year.
Below you will find a full statistical profile of Kaizlee 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 Kaizlee paired with any surname.
Estimated Living Americans
280
About 1 in 1,224,123 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
8
years old
Peak Year
2018
32 births
Total Registered
282
since 1880
Gender Distribution for Kaizlee
Kaizlee is almost exclusively a female name. Out of 282 total births registered, 100.0% were female.
Kaizlee as a female name
Ranked #5,499 in 2024
23 female births in 2024
Peak: 2018 (32 births)
Kaizlee: Popularity Over Time
SSA records for Kaizlee span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 153 babies were registered. While Kaizlee is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Kaizlee by Decade
How has Kaizlee 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.
Kaizlee + Last Name Combinations
How many people share a full name with Kaizlee as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kaizlee
Other first names starting with K with a similar number of bearers.
Kaizlee: Questions and Answers
How many people in the U.S. are named Kaizlee?
We estimate approximately 280 people named Kaizlee 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 1,224,123 Americans share this first name.
Is Kaizlee a common name?
Kaizlee is classified as "Very Rare" and is more popular than 78.4% of all first names in the SSA database. A total of 282 births have been registered with this name since 1880.
When was Kaizlee most popular?
Kaizlee reached peak popularity in 2018, when 32 babies were given this name. The average age of a living person named Kaizlee is approximately 8 years old, reflecting when the name was most commonly given.
Is Kaizlee a female name?
Kaizlee is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kaizlee Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kaizlee Smith, Kaizlee Johnson, Kaizlee 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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