He was first elected as a Daly City Council member in 1993 and became the youngest mayor at age 33 in 1995.
Guingona was born in San Francisco, California, but moved to Daly City in 1965 at the age of 3.
He graduated from Westmoor High School[3] where, during his senior year, he was elected class president.
When he returned to Daly City, he went to the University of San Francisco Law School to pursue his Juris Doctor.
He left the Public Defender's Office in 1999 and established a private practice in San Francisco specializing in criminal defense.
In addition to his duties as a City Council member, Guingona has served his community as a member of the San Mateo County (SMC) Transit District Board of Directors, which he chaired in 2001 and the San Mateo County Transportation Authority, which he chaired in 2003.
[4] Guingona co-hosted the program Citizen Pinoy on The Filipino Channel, which was launched in 2005 in the U.S. and the Philippines.
[4] This was a reality-TV show that helps Filipino Americans connect with their family and friends back in the Philippines.