How Many People Are Named Leilyn?
An estimated 72 people in the United States have the first name Leilyn. It is almost exclusively a female name. The average bearer is 14 years old, and Leilyn peaked in popularity in 2015 with 12 births that year.
Below you will find a full statistical profile of Leilyn as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Leilyn paired with any surname.
Key Insights
- Leilyn is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
72
About 1 in 4,760,477 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
14
years old
Peak Year
2015
12 births
Total Registered
73
since 1880
Gender Distribution for Leilyn
Leilyn is almost exclusively a female name. Out of 73 total births registered, 100.0% were female.
Leilyn as a female name
Ranked #14,821 in 2019
6 female births in 2019
Peak: 2015 (12 births)
Leilyn: Popularity Over Time
SSA records for Leilyn span from the 2000s to the 2010s, covering 2 decades of naming data. The most popular decade for this name was the 2010s, when 52 babies were registered. Leilyn remains highly popular today, with recent registration numbers near its historical peak.
Leilyn by Decade
How has Leilyn 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.
Leilyn + Last Name Combinations
How many people share a full name with Leilyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Leilyn
Other first names starting with L with a similar number of bearers.
Leilyn: Questions and Answers
How many people in the U.S. are named Leilyn?
We estimate approximately 72 people named Leilyn 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 4,760,477 Americans share this first name.
Is Leilyn a common name?
Leilyn is classified as "Very Rare" and is more popular than 59.7% of all first names in the SSA database. A total of 73 births have been registered with this name since 1880.
When was Leilyn most popular?
Leilyn reached peak popularity in 2015, when 12 babies were given this name. The average age of a living person named Leilyn is approximately 14 years old, reflecting when the name was most commonly given.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Leilyn was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
Is Leilyn a female name?
Leilyn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
Why can Leilyn have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Leilyn peaked in 2015, and the average living bearer is about 14 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Leilyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Leilyn Smith, Leilyn Johnson, Leilyn 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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