Demetrio first appears in the U.S. registration record in 1908. Its popularity climbed over the following decades. In 1999, 88 babies received the name (ranked #1356). Today it sits well outside the top 1,000 (around #4388), with roughly 24 babies named Demetrio each year. Demetrio's usage has held roughly steady recently. In total, around 3,047 babies have been registered with this name since 1880.