Lewis has been given to about 156,636 people in the United States since 1880. It was most common in 1921, which makes it a interwar name.
Lewis ranks 433rd among American boys in 2025, with 736 born that year. Its best year was 1921, when 2,731 babies were given the name, ranking 71st. The typical living American called Lewis is about 67 years old today. It is relatively most common in Vermont, where it accounts for 0.23% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.