In 2025, 1,825 US girls were named Isabelle, making it the 166th most common girls’ name of the year, up 5 places from #171 in 2024. That is 38 more than the 1,787 girls named Isabelle in 2024. Its best rank for girls was #79, reached in 2007. That year also had the most girls given the name: 4,106. For comparison, it was #94 in 2015 and #875 in 1950.
Social Security card records list Isabelle in every one of the 146 years from 1880 to 2025; in 1880 there were 80 babies with the name. In all, 107,782 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 32,891 babies named Isabelle.
Over the 10 years from 2016 to 2025, 23,525 US girls were named Isabelle; the busiest of those years was 2017, with 3,168. In 2025 that was about 1 in 881 of the girls in SSA’s list for the year.
Among the states, Isabelle ranked highest in North Dakota in 2025, at #65 for girls there. It was in the top 100 in 4 states (counting DC). Related spellings in the SSA files include Elizabeth (1,693,973 babies since 1880), Betty (1,004,857 babies since 1880), Lisa (970,012 babies since 1880) and Isabella (417,454 babies since 1880). Rarer spellings such as Ysabelle, Izzabelle and Issabelle are summarised on this page. The open nickname list we use links it to Bella, Belle, Ib, Issy, Nib and Nibby.