Izaiah is a moderately popular boys' name in United States, ranking #460 in 2006 with 589 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 645.6%. In 2006, approximately 1 in every 3,489 boys born was named Izaiah. FALLING Recent data shows the name is currently falling.