Isidro ranked #3769 among U.S. baby names in 2024. Since 1885, 8,120 babies have been named Isidro, peaking in 2000 with 160 births. The 2000s were its biggest decade, with 1,368 births. Isidro is on the rise, up about 22% over the past five years. It is predominantly a boys' name.