Izaiah is a moderately popular boys' name in United States, ranking #445 in 2013 with 646 recorded births. This places Izaiah in the top 3% of ranked US boys' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2009 with 742 births ranking #400. Since 1996, the popularity has increased by 717.7%. In 2013, approximately 1 in every 2,928 boys born was named Izaiah. FALLING Recent data shows the name is currently falling.