Mckinley is a distinctive girls' name in United States, ranking #1153 in 2000 with 176 recorded births. The name reached its all-time peak in 2014 with 862 births ranking #379. Since 1996, the popularity has increased by 95.6%. In 2000, approximately 1 in every 10,318 girls born was named Mckinley. FALLING Recent data shows the name is currently falling.