According to the University of Wisconsin Law School, the salutation included in correspondence to a judge varies based on the level of the court over which the judge presides. The mailing address portion of the correspondence should contain "The Honorable" followed by the judge's first and last name.
The University of Wisconsin Law School indicates that the most common salutation form is "Judge" followed by the judge's last name. Other possible titles include "Chief Judge," "Magistrate Judge," "Justice" and Chief Justice," each of which should be followed by the judge's or justice's last name in a salutation. The mailing address honorific "The Honorable" followed by the first and last name remains the same for all levels of courts.