Jamarcus has been given to about 5,638 people in the United States since 1880. It was most common in 2007, which makes it a millennial-parent name.
Its best year was 2007, when 301 babies were given the name, ranking 744th. The typical living American called Jamarcus is about 23 years old today. It is relatively most common in Georgia, 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.