In 2025, 81 US boys were named Karsen, making it the 1,928th most common boys’ name of the year, down 83 places from #1,845 in 2024. That is 7 fewer than the 88 boys named Karsen in 2024. Its best rank for boys was #998, reached in 2012. The most boys given the name in a single year was 206, in 2018. For comparison, it was #1,076 in 2015 and unranked in 1950.
In 2025, 31 US girls were named Karsen, making it the 4,495th most common girls’ name of the year, down 333 places from #4,162 in 2024. That is 4 fewer than the 35 girls named Karsen in 2024. Its best rank for girls was #1,890, reached in 2003. That year also had the most girls given the name: 97. For comparison, it was #3,276 in 2015 and unranked in 1950.
Social Security card records list Karsen in 37 years of the 146 from 1880 to 2025, starting in 1989 with 5 babies. In all, 5,227 US babies have been given the name, 34% of them girls and 66% boys. Its busiest decade was the 2010s, with 2,345 babies named Karsen.
Over the 10 years from 2016 to 2025, 1,432 US boys were named Karsen; the busiest of those years was 2018, with 206. In 2025 that was about 1 in 21,087 of the boys in SSA’s list for the year.
Among the states, Karsen ranked highest in Louisiana in 2025, at #630 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Carson (140,887 babies since 1880), Karson (23,500 babies since 1880), Karsyn (12,267 babies since 1880) and Carsyn (6,386 babies since 1880).