Mckinley ranked #1365 among U.S. baby names in 2024. Since 1890, 22,456 babies have been named Mckinley, peaking in 2014 with 934 births. The 2010s were its biggest decade, with 7,927 births. Its use has been declining, down about 34% over the past five years. Mckinley is given to both girls and boys.