Member Counts and Statistics

The official APS membership count has set a new all-time record, reaching a total of 47,947 as of January 2010. This is an increase of 758 over 2009.
   Historical Membership Counts, 1899-2010
   Membership Counts by Category
   APS News: Membership Count Hits New Peak

If you have any questions regarding the statistics, please email APS Membership.

NOTE: Graphs are on different scales reflecting different totals from the January 2010 count.