In 2018, 2 is the most common age for an American (U.S.) Santiago who is registered male with the Social Security Administration. It is the 1, 163rd most common male first name for living U.S. citizens.
― Anonymous User 10/16/2018
2
According to (http://www.babynames.ch/Info/Name/naSantiago) Santiago ranked 1st place in Argentina (2009), 93rd place in Brazil (2015), 19th place in Chile (2015), 1st place in Colombia (2015), 1st place in Mexico (2013), 1st place in Buenos Aires, Argentina, 4th place in Portugal (2015), 83rd place in Spain (2015), 2nd place in Montevideo, Uruguay, 127th place in the USA (2015), given among Hispanics and 2nd place in Venezuela. Very popular name among Spanish speaking and Portuguese speaking countries.
https://www.behindthename.com/name/santiago/top/italy?type=percent