Mckinley is a distinctive boys' name in United States, ranking #1921 in 2010 with 74 recorded births. The name reached its all-time peak in 2000 with 111 births ranking #1218. Since 1996, the popularity has decreased by 14.0%. In 2010, approximately 1 in every 25,924 boys born was named Mckinley. FALLING Recent data shows the name is currently falling.