Izaiah is a distinctive boys' name in United States, ranking #635 in 2025 with 439 recorded births. This places Izaiah in the top 5% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 742 births ranking #400. Since 1996, the popularity has increased by 455.7%. In 2025, approximately 1 in every 3,891 boys born was named Izaiah. FALLING Recent data shows the name is currently falling.