Mckinley is a distinctive girls' name in United States, ranking #543 in 2021 with 563 recorded births. The name reached its all-time peak in 2014 with 862 births ranking #379. Since 1996, the popularity has increased by 525.6%. In 2021, approximately 1 in every 2,912 girls born was named Mckinley. FALLING Recent data shows the name is currently falling.