In 1947 Roybal ran to fill the Los Angeles City Council District 9 seat held by Parley Parker Christensen. The district, which included Boyle Heights, Bunker Hill, Civic Center, Chinatown, Little Tokyo, and the Central Avenue corridor, was then 45% White, 34% Latino, 15% African American, and 6% "other" residents. Roybal placed third in a field of five. In 1949, though, he defeated Christensen in the runoff election, for a two-year term. He was reelected in every vote thereafter until leaving office in 1962 after 13 years, He was president pro tempore in his last term.