How Many People Are Named Kellsey?
An estimated 427 people in the United States have the first name Kellsey. It is almost exclusively a female name. The average bearer is 28 years old, and Kellsey peaked in popularity in 1993 with 38 births that year.
Below you will find a full statistical profile of Kellsey 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 Kellsey paired with any surname.
Estimated Living Americans
427
About 1 in 802,703 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
28
years old
Peak Year
1993
38 births
Total Registered
439
since 1880
Gender Distribution for Kellsey
Kellsey is almost exclusively a female name. Out of 439 total births registered, 100.0% were female.
Kellsey as a female name
Ranked #17,174 in 2017
5 female births in 2017
Peak: 1993 (38 births)
Kellsey: Popularity Over Time
SSA records for Kellsey span from the 1980s to the 2010s, covering 4 decades of naming data. The most popular decade for this name was the 1990s, when 236 babies were registered. Kellsey has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Kellsey by Decade
How has Kellsey 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.
Kellsey by State
Kellsey + Last Name Combinations
How many people share a full name with Kellsey as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kellsey
Other first names starting with K with a similar number of bearers.
Kellsey: Questions and Answers
How many people in the U.S. are named Kellsey?
We estimate approximately 427 people named Kellsey 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 802,703 Americans share this first name.
Is Kellsey a common name?
Kellsey is classified as "Very Rare" and is more popular than 83% of all first names in the SSA database. A total of 439 births have been registered with this name since 1880.
When was Kellsey most popular?
Kellsey reached peak popularity in 1993, when 38 babies were given this name. The average age of a living person named Kellsey is approximately 28 years old, reflecting when the name was most commonly given.
Is Kellsey a female name?
Kellsey is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kellsey Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kellsey Smith, Kellsey Johnson, Kellsey 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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