How Many People Are Named Lei?
An estimated 549 people in the United States have the first name Lei. It is predominantly female (95.4%). The average bearer is 49 years old, and Lei peaked in popularity in 1960 with 25 births that year.
Below you will find a full statistical profile of Lei 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 Lei paired with any surname.
Estimated Living Americans
549
About 1 in 624,325 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
95.4% confidence
Average Age
49
years old
Peak Year
1960
25 births
Total Registered
678
since 1880
Gender Distribution for Lei
Lei is predominantly female (95.4%), though 31 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Lei as a male name
Ranked #11,541 in 2015
6 male births in 2015
Peak: 2015 (6 births)
Lei as a female name
Ranked #16,590 in 2024
5 female births in 2024
Peak: 1960 (25 births)
Lei: Popularity Over Time
SSA records for Lei span from the 1930s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 1960s, when 160 babies were registered. Lei has declined significantly from its peak in the 1960s. Recent registrations are a fraction of what they were at the name's height.
Lei by Decade
How has Lei 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.
Lei by State
Lei + Last Name Combinations
How many people share a full name with Lei as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lei
Other first names starting with L with a similar number of bearers.
Lei: Questions and Answers
How many people in the U.S. are named Lei?
We estimate approximately 549 people named Lei 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 624,325 Americans share this first name.
Is Lei a common name?
Lei is classified as "Very Rare" and is more popular than 85.4% of all first names in the SSA database. A total of 678 births have been registered with this name since 1880.
When was Lei most popular?
Lei reached peak popularity in 1960, when 25 babies were given this name. The average age of a living person named Lei is approximately 49 years old, reflecting when the name was most commonly given.
Is Lei a female name?
Lei is predominantly female. 95.4% of people with this name are female. See the gender breakdown above for full details.
How many Lei Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lei Smith, Lei Johnson, Lei 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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