Oscar García is from Miami, Florida, where he was born to immigrant parents in the predominantly immigrant community of Hialeah. In 2016, Oscar graduated from Florida State University with a degree in political science. In 2021, Oscar graduated from the University of Illinois College of Law in Champaign-Urbana. Throughout his life, Oscar has been personally and directly connected to the cause of immigrant justice. At FSU, Oscar was involved in a program that provided mentoring and English language assistance to immigrant children in Leon County. During law school, Oscar externed at the National Immigrant Justice Center, where he went on to work following his admission to the bar. He is deeply passionate about uplifting communities and pursuing justice for all people.

In his free time, Oscar enjoys photography, hiking, and basketball.