Jax has been given to about 25,309 people in the United States since 1880. It was most common in 2015, which makes it a current name.
Jax ranks 342nd among American boys in 2025, with 974 born that year. Its best year was 2015, when 1,903 babies were given the name, ranking 215th. The typical living American called Jax is about 10 years old today. It is relatively most common in North Dakota, 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.