Juancarlos has been given to about 4,056 people in the United States since 1880. It was most common in 2004, which makes it a millennial-parent name.
Its best year was 2004, when 154 babies were given the name, ranking 1050th. The typical living American called Juancarlos is about 22 years old today. It is relatively most common in California, where it accounts for 0.01% of births.
Source: US Social Security Administration, national and state name files, 2025 release. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.