Izaiah is a moderately popular boys' name in United States, ranking #401 in 2012 with 729 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 822.8%. In 2012, approximately 1 in every 2,602 boys born was named Izaiah. FALLING Recent data shows the name is currently falling.