Election to the APS honors extraordinary accomplishments in all fields. The APS is unusual among learned societies because its membership is comprised of top scholars from a wide variety of academic disciplines. Members are organized into five classes:
Class 1 Mathematical and Physical Sciences
Class 2 Biological Sciences
Class 3 Social Sciences
Class 4 Humanities
Class 5 The Arts, Professions, and Leaders in Public & Private Affairs
As of the April 2015 elections the APS has 1023 members. There are 853 Resident members (citizens or residents of the United States) and 170 International members (formerly called "Foreign" members) representing more than two dozen countries.
Nomination and Election
The APS is an honorary society that elects new members to their ranks each year in April. Nominations for membership can only be made by Resident members of the APS.