How Many People Are Named Lewis?
An estimated 68,216 people in the United States have the first name Lewis. It is predominantly male (99.4%). The average bearer is 57 years old, and Lewis peaked in popularity in 1921 with 2,731 births that year.
Below you will find a full statistical profile of Lewis 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 Lewis paired with any surname.
Key Insights
- While Lewis is overwhelmingly male, 870 female births have been registered with this name since 1880.
Estimated Living Americans
68,216
About 1 in 5,025 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
99.4% confidence
Average Age
57
years old
Peak Year
1921
2,731 births
Total Registered
155,889
since 1880
Gender Distribution for Lewis
Lewis is almost exclusively a male name. Out of 155,889 total births registered, 99.4% were male.
Lewis as a male name
Ranked #433 in 2024
728 male births in 2024
Peak: 1921 (2,712 births)
Lewis as a female name
Ranked #15,262 in 2004
6 female births in 2004
Peak: 1917 (23 births)
Lewis: Popularity Over Time
SSA records for Lewis span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1920s, when 25,491 babies were registered. Lewis has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Lewis by Decade
How has Lewis 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.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 4,341 | 4,341 | 0 | |
| 1890s | 3,715 | 3,699 | 16 | |
| 1900s | 4,060 | 4,042 | 18 | |
| 1910s | 17,911 | 17,787 | 124 | |
| 1920s | 25,491 | 25,328 | 163 | |
| 1930s | 20,143 | 20,017 | 126 | |
| 1940s | 21,040 | 20,931 | 109 | |
| 1950s | 18,215 | 18,134 | 81 | |
| 1960s | 11,767 | 11,682 | 85 | |
| 1970s | 7,601 | 7,518 | 83 | |
| 1980s | 5,900 | 5,841 | 59 | |
| 1990s | 4,533 | 4,533 | 0 | |
| 2000s | 3,427 | 3,421 | 6 | |
| 2010s | 4,552 | 4,552 | 0 | |
| 2020s | 3,193 | 3,193 | 0 | |
Lewis by State
Birth registrations for Lewis span all 51 states and territories in the SSA database. The highest counts are in New York, Pennsylvania, Texas. The lowest are in Hawaii, Nevada, Alaska. On average, about 2,739 Lewiss were registered per state.
Lewis + Last Name Combinations
How many people share a full name with Lewis as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lewis
Other first names starting with L with a similar number of bearers.
Lewis: Questions and Answers
How many people in the U.S. are named Lewis?
We estimate approximately 68,216 people named Lewis 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 5,025 Americans share this first name.
Is Lewis a common name?
Lewis is classified as "Uncommon" and is more popular than 99.3% of all first names in the SSA database. A total of 155,889 births have been registered with this name since 1880.
When was Lewis most popular?
Lewis reached peak popularity in 1921, when 2,731 babies were given this name. The average age of a living person named Lewis is approximately 57 years old, reflecting when the name was most commonly given.
Is Lewis a male name?
Lewis is predominantly male. 99.4% of people with this name are male. See the gender breakdown above for full details.
How many Lewis Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lewis Smith, Lewis Johnson, Lewis 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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