Lewis Boy
How popular is Lewis?
#433 boy name in 2025
736 baby boys were named Lewis in the US in 2025, making it the 433rd most popular boy name.
64,658living people named Lewis (est.)
61median age of people named Lewis
156,636babies named Lewis since 1880
1 in 4,505US babies born in 2025
Lewis popularity over time
Boys Girls
| Rank in 2025 | #433 for boys (▼ 2 from 2024) |
|---|---|
| Babies in 2025 | 736 boys |
| 10-year trend | Rising (+49% babies vs 2015) |
| Earlier ranks | #568 in 2015, #497 in 2020 |
| Peak year | 1921 (2,712 boys) |
| Highest rank | #30 in 1880 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.5% in a class of 25 kids born in 2025 |
Where Lewis is most popular
Babies named Lewis per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
Lewis by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 4,341 | #30 |
| 1890s | 3,699 | #50 |
| 1900s | 4,042 | #52 |
| 1910s | 17,787 | #65 |
| 1920s | 25,328 | #71 |
| 1930s | 20,017 | #87 |
| 1940s | 20,931 | #107 |
| 1950s | 18,133 | #132 |
| 1960s | 11,683 | #204 |
| 1970s | 7,517 | #236 |
| 1980s | 5,841 | #305 |
| 1990s | 4,533 | #395 |
| 2000s | 3,424 | #572 |
| 2010s | 4,552 | #506 |
| 2020s | 3,938 | #431 |
Boy names about as popular as Lewis
Questions
- Is Lewis a boy or girl name?
- Lewis is mostly a boy name. Over the last 10 years, 100% of babies named Lewis were boys.
- How popular is the name Lewis?
- 736 baby boys were named Lewis in the US in 2025, making it the 433rd most popular boy name.
- When was Lewis most popular?
- Lewis peaked in 1921, when 2,712 boys were given the name. Its highest rank was #30 in 1880.
- How many people are named Lewis?
- 156,636 babies have been named Lewis in the US since 1880. We estimate about 64,658 of them are alive in 2026, with a median age of 61.
- Where is Lewis most popular?
- From 2021 to 2025, Lewis was most common in Montana, at 2.2 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.