Fewer than five US girls were named Jacalyn in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #395, reached in 1954. That year also had the most girls given the name: 482. For comparison, it was #15,244 in 2015 and #608 in 1950.
Social Security card records list Jacalyn in 76 years of the 146 from 1880 to 2025, starting in 1937 with 6 babies. In all, 5,185 US babies have been given the name, all of them girls. Its busiest decade was the 1950s, with 2,599 babies named Jacalyn.
Over the 10 years from 2016 to 2025, 17 US girls were named Jacalyn; the busiest of those years was 2023, with 10.
Related spellings in the SSA files include Jacqulyn (3,958 babies since 1880) and Jackelyn (3,896 babies since 1880). Rarer spellings such as Jackalyn, Jacolyn and Jakelyn are summarised on this page.