Mckinley is a distinctive girls' name in United States, ranking #1203 in 2002 with 169 recorded births. The name reached its all-time peak in 2014 with 862 births ranking #379. Since 1996, the popularity has increased by 87.8%. In 2002, approximately 1 in every 10,632 girls born was named Mckinley. FALLING Recent data shows the name is currently falling.