Eider has been given to about 749 people in the United States since 1880. It was most common in 2024, which makes it a current name.
Its best year was 2024, when 217 babies were given the name, ranking 1027th. The typical living American called Eider is about 2 years old today. It is relatively most common in Kansas, where it accounts for 0.02% 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.