Rosalia has been given to about 10,664 people in the United States since 1880. It was most common in 2023, which makes it a current name.
Rosalia ranks 609th among American girls in 2025, with 481 born that year. Its best year was 2023, when 517 babies were given the name, ranking 580th. The typical living American called Rosalia is about 18 years old today. It is relatively most common in New Mexico, where it accounts for 0.05% 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.