Mileigh first appears in the U.S. registration record in 2006. Its popularity climbed over the following decades. In 2008, 39 babies received the name (ranked #4063). Today it sits well outside the top 1,000 (around #13985), with roughly 7 babies named Mileigh each year. Mileigh's usage has held roughly steady recently. In total, around 247 babies have been registered with this name since 1880.