How Many People Are Named Lillien?
An estimated 298 people in the United States have the first name Lillien. It is almost exclusively a female name. The average bearer is 15 years old, and Lillien peaked in popularity in 2007 with 20 births that year.
Below you will find a full statistical profile of Lillien 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 Lillien paired with any surname.
Estimated Living Americans
298
About 1 in 1,150,182 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
15
years old
Peak Year
2007
20 births
Total Registered
319
since 1880
Gender Distribution for Lillien
Lillien is almost exclusively a female name. Out of 319 total births registered, 100.0% were female.
Lillien as a female name
Ranked #14,467 in 2024
6 female births in 2024
Peak: 2007 (20 births)
Lillien: Popularity Over Time
SSA records for Lillien span from the 1910s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2010s, when 152 babies were registered. Lillien has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Lillien by Decade
How has Lillien 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.
Lillien + Last Name Combinations
How many people share a full name with Lillien as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lillien
Other first names starting with L with a similar number of bearers.
Lillien: Questions and Answers
How many people in the U.S. are named Lillien?
We estimate approximately 298 people named Lillien 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 1,150,182 Americans share this first name.
Is Lillien a common name?
Lillien is classified as "Very Rare" and is more popular than 79.1% of all first names in the SSA database. A total of 319 births have been registered with this name since 1880.
When was Lillien most popular?
Lillien reached peak popularity in 2007, when 20 babies were given this name. The average age of a living person named Lillien is approximately 15 years old, reflecting when the name was most commonly given.
Is Lillien a female name?
Lillien is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Lillien Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lillien Smith, Lillien Johnson, Lillien 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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