The story of Mckinnley
Mckinnley is rare for girls in the United States, ranked #8,684 in 2025 with 12 babies given the name. It is currently declining compared with a decade ago.
Since 1994, 578 American babies have been named Mckinnley, about 88% girls and 12% boys, making it a genuinely unisex name. Its peak came in 2011, when 51 newborns received the name, the signature sound of the 2010s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Mckinnley stood among all girls' names in any year, or use the compare tool to plot it against other names.