Santo has been given to about 4,876 people in the United States since 1880. It was most common in 1925, which makes it a interwar name.
Its best year was 1925, when 116 babies were given the name, ranking 583rd. The typical living American called Santo is about 57 years old today. It is relatively most common in California, 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.