The ALA membership count as of October 31, 2013 was 57,404. This is 294 greater than the September 30, 2013 membership. The October 31, 2012 membership count was 57,840. Four divisions and 10 roundtables had membership increases in November, and joint ALA Chapter student membership packages exceeded last year’s count by 300.
Source: Fiels, Keith Michael. Report to [ALA] Council and Executive Board, December 12, 2013.
I suppose I could have said declining rather than static to reflect the fact that the American Library Association had about 400 fewer members this year than last year. But since 400 out of 57,000 is about 0.7%, I’m going with static.