Born in Montreal, Quebec, Côté ran for a seat to the city council of Montreal in 1934 in the district of Ville-Marie, but was defeated by incumbent Tancrède Fortin. He ran again in 1936 and was successful against Fortin. Côté was re-elected in 1938 but did not run for re-election in 1940.
Côté resigned his other posts in 1956 to become a judge, then left the bench in 1976 after reaching mandatory retirement age. After his death in 1999, he was entombed at the Notre Dame des Neiges Cemetery in Montreal.[2]