The name Shannen experienced a significant boom between the late 1980s and mid-1990s, with its highest peaks being 216 births in 1993 and 179 births in 1992. However, it has since declined considerably, with only 5 or fewer occurrences each year from 2010 onwards, including a low of just 5 births in 2023. Overall, there have been a total of 1921 babies named Shannen between 1961 and 2023.