How Many People Are Named Lyllie?
An estimated 86 people in the United States have the first name Lyllie. It is almost exclusively a female name. The average bearer is 15 years old, and Lyllie peaked in popularity in 2012 with 11 births that year.
Below you will find a full statistical profile of Lyllie 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 Lyllie paired with any surname.
Key Insights
- Lyllie is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
86
About 1 in 3,985,516 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
15
years old
Peak Year
2012
11 births
Total Registered
87
since 1880
Gender Distribution for Lyllie
Lyllie is almost exclusively a female name. Out of 87 total births registered, 100.0% were female.
Lyllie as a female name
Ranked #11,247 in 2017
9 female births in 2017
Peak: 2012 (11 births)
Lyllie: Popularity Over Time
SSA records for Lyllie span from the 2000s to the 2010s, covering 2 decades of naming data. The most popular decade for this name was the 2010s, when 58 babies were registered. Lyllie remains highly popular today, with recent registration numbers near its historical peak.
Lyllie by Decade
How has Lyllie 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.
Lyllie + Last Name Combinations
How many people share a full name with Lyllie as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lyllie
Other first names starting with L with a similar number of bearers.
Lyllie: Questions and Answers
How many people in the U.S. are named Lyllie?
We estimate approximately 86 people named Lyllie 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 3,985,516 Americans share this first name.
Is Lyllie a common name?
Lyllie is classified as "Very Rare" and is more popular than 62.4% of all first names in the SSA database. A total of 87 births have been registered with this name since 1880.
When was Lyllie most popular?
Lyllie reached peak popularity in 2012, when 11 babies were given this name. The average age of a living person named Lyllie is approximately 15 years old, reflecting when the name was most commonly given.
Is Lyllie a female name?
Lyllie is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Lyllie Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lyllie Smith, Lyllie Johnson, Lyllie 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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