Micajah is a distinctive boys' name in United States, ranking #13356 in 2006 with 5 recorded births. This places Micajah in the bottom 5% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 10 births ranking #6346. In 2006, approximately 1 in every 411,024 boys born was named Micajah. RISING Recent data shows the name is currently rising.