How Many People Are Named Katelyn?
An estimated 130,614 people in the United States have the first name Katelyn. While not in the top 50, it remains a well-known name ranking #412 overall. It is almost exclusively a female name. The average bearer is 26 years old, and Katelyn peaked in popularity in 1993 with 5,975 births that year.
Below you will find a full statistical profile of Katelyn 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 Katelyn paired with any surname.
Key Insights
- While Katelyn is overwhelmingly female, 157 male births have been registered with this name since 1880.
- Katelyn has fallen dramatically from its peak in the 1990s. Recent registrations are less than 5% of what they were at the name's height.
Estimated Living Americans
130,614
About 1 in 2,624 people in the U.S.
Rarity
Common
Predicted Gender
Female
99.9% confidence
Average Age
26
years old
Peak Year
1993
5,975 births
Total Registered
133,974
since 1880
Gender Distribution for Katelyn
Katelyn is almost exclusively a female name. Out of 133,974 total births registered, 99.9% were female.
Katelyn as a male name
Ranked #13,118 in 2013
5 male births in 2013
Peak: 2004 (28 births)
Katelyn as a female name
Ranked #931 in 2024
283 female births in 2024
Peak: 1993 (5,975 births)
Katelyn: Popularity Over Time
SSA records for Katelyn span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 1990s, when 52,863 babies were registered. Katelyn has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Katelyn by Decade
How has Katelyn 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.
Katelyn by State
Birth registrations for Katelyn span all 51 states and territories in the SSA database. The highest counts are in California, Texas, Pennsylvania. The lowest are in District of Columbia, Wyoming, Hawaii. On average, about 2,607 Katelyns were registered per state.
Katelyn + Last Name Combinations
How many people share a full name with Katelyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Katelyn
Other first names starting with K with a similar number of bearers.
Katelyn: Questions and Answers
How many people in the U.S. are named Katelyn?
We estimate approximately 130,614 people named Katelyn 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 2,624 Americans share this first name.
Is Katelyn a common name?
Katelyn is classified as "Common" and is more popular than 99.6% of all first names in the SSA database. A total of 133,974 births have been registered with this name since 1880.
When was Katelyn most popular?
Katelyn reached peak popularity in 1993, when 5,975 babies were given this name. The average age of a living person named Katelyn is approximately 26 years old, reflecting when the name was most commonly given.
Is Katelyn a female name?
Katelyn is predominantly female. 99.9% of people with this name are female. See the gender breakdown above for full details.
How many Katelyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Katelyn Smith, Katelyn Johnson, Katelyn 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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