How Many People Are Named Lillyen?
An estimated 67 people in the United States have the first name Lillyen. It is almost exclusively a female name. The average bearer is 16 years old, and Lillyen peaked in popularity in 2013 with 10 births that year.
Below you will find a full statistical profile of Lillyen 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 Lillyen paired with any surname.
Key Insights
- Lillyen is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
67
About 1 in 5,115,736 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
16
years old
Peak Year
2013
10 births
Total Registered
68
since 1880
Gender Distribution for Lillyen
Lillyen is almost exclusively a female name. Out of 68 total births registered, 100.0% were female.
Lillyen as a female name
Ranked #18,111 in 2014
5 female births in 2014
Peak: 2013 (10 births)
Lillyen: Popularity Over Time
SSA records for Lillyen span from the 2000s to the 2010s, covering 2 decades of naming data. The most popular decade for this name was the 2010s, when 36 babies were registered. Lillyen remains highly popular today, with recent registration numbers near its historical peak.
Lillyen by Decade
How has Lillyen 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.
Lillyen + Last Name Combinations
How many people share a full name with Lillyen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lillyen
Other first names starting with L with a similar number of bearers.
Lillyen: Questions and Answers
How many people in the U.S. are named Lillyen?
We estimate approximately 67 people named Lillyen 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 5,115,736 Americans share this first name.
Is Lillyen a common name?
Lillyen is classified as "Very Rare" and is more popular than 58.7% of all first names in the SSA database. A total of 68 births have been registered with this name since 1880.
When was Lillyen most popular?
Lillyen reached peak popularity in 2013, when 10 babies were given this name. The average age of a living person named Lillyen is approximately 16 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 Lillyen 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 Lillyen a female name?
Lillyen is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
Why can Lillyen 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. Lillyen peaked in 2013, and the average living bearer is about 16 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Lillyen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lillyen Smith, Lillyen Johnson, Lillyen 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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