Susannah has been given to about 7,784 people in the United States since 1880. It was most common in 1975, which makes it a boomer-era name.
Its best year was 1975, when 152 babies were given the name, ranking 877th. The typical living American called Susannah is about 38 years old today. It is relatively most common in Texas, where it accounts for 0.00% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.