Kaycee has been given to about 9,184 people in the United States since 1880. It was most common in 1998, which makes it a Gen X and millennial name.
Its best year was 1998, when 274 babies were given the name, ranking 810th. The typical living American called Kaycee is about 24 years old today. It is relatively most common in Alabama, where it accounts for 0.02% 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.