Mckinley is a distinctive girls' name in United States, ranking #1191 in 2001 with 172 recorded births. The name reached its all-time peak in 2014 with 862 births ranking #379. Since 1996, the popularity has increased by 91.1%. In 2001, approximately 1 in every 10,468 girls born was named Mckinley. FALLING Recent data shows the name is currently falling.