Casey has been given to about 194,775 people in the United States since 1880. It was most common in 1987, which makes it a Gen X and millennial name.
Its best year was 1987, when 7,510 babies were given the name, ranking 81st. The typical living American called Casey is about 37 years old today. It is relatively most common in Delaware, where it accounts for 0.13% 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.