Isa ranked #1634 among U.S. baby names in 2024. Since 1880, 6,197 babies have been named Isa, peaking in 2024 with 316 births. The 2010s were its biggest decade, with 1,820 births. Isa is on the rise, up about 22% over the past five years. Isa is given to both girls and boys.