Fermin has been given to about 4,832 people in the United States since 1880. It was most common in 1993, which makes it a Gen X and millennial name.
Its best year was 1993, when 86 babies were given the name, ranking 1221st. The typical living American called Fermin is about 37 years old today. It is relatively most common in California, where it accounts for 0.00% 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.