Cornelius has been given to about 37,049 people in the United States since 1880. It was most common in 1974, which makes it a boomer-era name.
Its best year was 1974, when 498 babies were given the name, ranking 346th. The typical living American called Cornelius is about 49 years old today. It is relatively most common in Michigan, where it accounts for 0.01% 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.