How Many People Are Named Kelsei?
An estimated 323 people in the United States have the first name Kelsei. It is almost exclusively a female name. The average bearer is 22 years old, and Kelsei peaked in popularity in 1996 with 19 births that year.
Below you will find a full statistical profile of Kelsei 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 Kelsei paired with any surname.
Estimated Living Americans
323
About 1 in 1,061,159 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
22
years old
Peak Year
1996
19 births
Total Registered
330
since 1880
Gender Distribution for Kelsei
Kelsei is almost exclusively a female name. Out of 330 total births registered, 100.0% were female.
Kelsei as a female name
Ranked #10,795 in 2022
9 female births in 2022
Peak: 1996 (19 births)
Kelsei: Popularity Over Time
SSA records for Kelsei span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 1990s, when 117 babies were registered. Kelsei has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Kelsei by Decade
How has Kelsei 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.
Kelsei + Last Name Combinations
How many people share a full name with Kelsei as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kelsei
Other first names starting with K with a similar number of bearers.
Kelsei: Questions and Answers
How many people in the U.S. are named Kelsei?
We estimate approximately 323 people named Kelsei 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 1,061,159 Americans share this first name.
Is Kelsei a common name?
Kelsei is classified as "Very Rare" and is more popular than 80% of all first names in the SSA database. A total of 330 births have been registered with this name since 1880.
When was Kelsei most popular?
Kelsei reached peak popularity in 1996, when 19 babies were given this name. The average age of a living person named Kelsei is approximately 22 years old, reflecting when the name was most commonly given.
Is Kelsei a female name?
Kelsei is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kelsei Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kelsei Smith, Kelsei Johnson, Kelsei 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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