The name Joab experienced significant fluctuations in popularity over the years, with a noticeable spike in recent times. While there were only 6 births recorded in 1965, by 2023, that number had grown to 40. The most notable jumps occurred between 1972 and 1989, where the annual births more than doubled from 5 to 23. However, it was not until 2002 that the name Joab started to consistently appear among the top choices, with over 20 births annually. The most recent data shows a continued trend of increasing popularity for this name.