AJA currently has a membership of over 3,500 judges from the United States, Canada, Mexico, Puerto Rico, Guam, American Samoa, and the Virgin Islands. Membership in AJA is open to all present and former judicial officers of any duly constituted judicial tribunal serving the local, community, provincial, state, or national level, whether having trial or appellate, criminal, civil, or special jurisdiction.
The objects and purposes of the association are (1) to promote and improve the effective administration of justice, (2) to maintain the status and independence of the judiciary, and (3) to provide a forum for the continuing education of its members, and of the general public, and for the interchange of ideas of a judicial nature among all judges.
An eligible Court is defined as any duly constituted judicial tribunal, serving at the local, community, State, Provincial or National level within the United States, any of its territories and possessions, the District of Columbia and Canada and Mexico, whether having trial or appellate, criminal, civil, or special jurisdiction. Such courts do not become ineligible by reason of being State, Provincial, or territorial Courts or by reason of having jurisdiction beyond the boundaries of the Governmental subdivision in which such courts are located. Courts of Indian Nations of the North American Continent and Magistrates, Masters, Arbitrators, Referees of any eligible judicial tribunal, if otherwise qualified, shall be eligible on the same basis.