Keng first appears in the U.S. registration record in 1979. Its popularity climbed over the following decades. In 1992, 32 babies received the name (ranked #2337). Today it sits well outside the top 1,000 (around #8462), with roughly 9 babies named Keng each year. Keng has been declining in recent years. In total, around 504 babies have been registered with this name since 1880.