The New York City mayoral election of 1985 occurred on Tuesday, November 5, 1985, with Democratic incumbent Mayor Ed Koch being re-elected to a third term by a landslide margin. Koch received an overwhelming 78.02% of the vote citywide. Koch also swept all five boroughs by landslide margins, breaking 70% of the vote in Manhattan and Queens and breaking 80% of the vote in Brooklyn, the Bronx, and Staten Island. Koch defeated his nearest competitor by a landslide 67.82% Democratic margin of victory and was sworn into his third and final term in January 1986.