Isiah is a distinctive boys' name in United States, ranking #816 in 2013 with 266 recorded births. This places Isiah in the top 6% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2001 with 822 births ranking #336. Since 1996, the popularity has decreased by 59.6%. In 2013, approximately 1 in every 7,110 boys born was named Isiah. STABLE Recent data shows the name is currently stable.