Rockland first appears in the U.S. registration record in 1945. Its popularity climbed over the following decades. In 1954, 14 babies received the name (ranked #2191). Today it sits well outside the top 1,000 (around #8385), with roughly 10 babies named Rockland each year. Rockland's usage has held roughly steady recently. In total, around 262 babies have been registered with this name since 1880.