Mckinley is a distinctive girls' name in United States, ranking #555 in 2020 with 536 recorded births. The name reached its all-time peak in 2014 with 862 births ranking #379. Since 1996, the popularity has increased by 495.6%. In 2020, approximately 1 in every 3,014 girls born was named Mckinley. FALLING Recent data shows the name is currently falling.