How Many People Are Named Lex?
An estimated 3,237 people in the United States have the first name Lex. It is almost exclusively a male name. The average bearer is 32 years old, and Lex peaked in popularity in 2012 with 94 births that year.
Below you will find a full statistical profile of Lex 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 Lex paired with any surname.
Estimated Living Americans
3,237
About 1 in 105,886 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.6% confidence
Average Age
32
years old
Peak Year
2012
94 births
Total Registered
3,949
since 1880
Gender Distribution for Lex
Lex is almost exclusively a male name. Out of 3,949 total births registered, 99.6% were male.
Lex as a male name
Ranked #2,216 in 2024
65 male births in 2024
Peak: 2012 (94 births)
Lex as a female name
Ranked #16,572 in 2023
5 female births in 2023
Peak: 2016 (5 births)
Lex: Popularity Over Time
SSA records for Lex span from the 1890s to the 2020s, covering 14 decades of naming data. The most popular decade for this name was the 2010s, when 785 babies were registered. While Lex is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Lex by Decade
How has Lex 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.
Lex by State
Birth registrations for Lex span all 18 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Washington, Tennessee, Oklahoma. On average, about 53 Lexs were registered per state.
Lex + Last Name Combinations
How many people share a full name with Lex as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lex
Other first names starting with L with a similar number of bearers.
Lex: Questions and Answers
How many people in the U.S. are named Lex?
We estimate approximately 3,237 people named Lex 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 105,886 Americans share this first name.
Is Lex a common name?
Lex is classified as "Rare" and is more popular than 95.4% of all first names in the SSA database. A total of 3,949 births have been registered with this name since 1880.
When was Lex most popular?
Lex reached peak popularity in 2012, when 94 babies were given this name. The average age of a living person named Lex is approximately 32 years old, reflecting when the name was most commonly given.
Is Lex a male name?
Lex is predominantly male. 99.6% of people with this name are male. See the gender breakdown above for full details.
How many Lex Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lex Smith, Lex Johnson, Lex 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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