Isahia is a distinctive boys' name in United States, ranking #6806 in 2007 with 12 recorded births. The name reached its all-time peak in 2007 with 12 births ranking #6806. Since 1996, the popularity has increased by 100.0%. In 2007, approximately 1 in every 172,936 boys born was named Isahia. FALLING Recent data shows the name is currently falling.