The name Rieley experienced a peak in popularity around the early to mid-2000s, with 21 births recorded in 2005, the highest of any year listed. The name's usage has generally fluctuated between 8 and 21 births per year since 1996, with a notable dip to just 6 births each in 2015 and 2016. Over this period, a total of 203 babies were named Rieley.