Jaelin's usage has fallen in recent decades. Today, Jaelin is a rare name in U.S. records with about 19 babies named Jaelin each year. At its height in 2003, Jaelin reached #1,555 nationally — 82 babies received it that single year. Its strongest stretch was the 2000s. In all, around 2,170 babies have been registered as Jaelin since 1880.