Jacobus first appears in the U.S. registration record in 1979. Its popularity climbed over the following decades. In 1997, 8 babies received the name (ranked #6861). Today it sits well outside the top 1,000 (around #12667), with roughly 5 babies named Jacobus each year. Jacobus's usage has held roughly steady recently. In total, around 137 babies have been registered with this name since 1880.