How Many People Are Named Kelsi?
An estimated 9,811 people in the United States have the first name Kelsi. It is almost exclusively a female name. The average bearer is 28 years old, and Kelsi peaked in popularity in 1991 with 624 births that year.
Below you will find a full statistical profile of Kelsi 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 Kelsi paired with any surname.
Estimated Living Americans
9,811
About 1 in 34,936 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
28
years old
Peak Year
1991
624 births
Total Registered
10,113
since 1880
Gender Distribution for Kelsi
Kelsi is almost exclusively a female name. Out of 10,113 total births registered, 100.0% were female.
Kelsi as a female name
Ranked #3,240 in 2024
49 female births in 2024
Peak: 1991 (624 births)
Kelsi: Popularity Over Time
SSA records for Kelsi span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1990s, when 5,054 babies were registered. Kelsi has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Kelsi by Decade
How has Kelsi 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.
Kelsi by State
Birth registrations for Kelsi span all 41 states and territories in the SSA database. The highest counts are in Texas, California, Ohio. The lowest are in South Dakota, Hawaii, Montana. On average, about 190 Kelsis were registered per state.
Kelsi + Last Name Combinations
How many people share a full name with Kelsi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kelsi
Other first names starting with K with a similar number of bearers.
Kelsi: Questions and Answers
How many people in the U.S. are named Kelsi?
We estimate approximately 9,811 people named Kelsi 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 34,936 Americans share this first name.
Is Kelsi a common name?
Kelsi is classified as "Rare" and is more popular than 97.7% of all first names in the SSA database. A total of 10,113 births have been registered with this name since 1880.
When was Kelsi most popular?
Kelsi reached peak popularity in 1991, when 624 babies were given this name. The average age of a living person named Kelsi is approximately 28 years old, reflecting when the name was most commonly given.
Is Kelsi a female name?
Kelsi is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kelsi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kelsi Smith, Kelsi Johnson, Kelsi 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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