On December 3, the Guardian released an article that included the packet for the August 2013 ALEC Board Meeting. This packet has been reported widely - if you have not read the article or the document I recommend that you do, it's very enlightening.
Page 29 of the August 2013 ALEC Board meeting is a breakdown by state that shows ALEC membership. Two notables in the ALEC Board report are South Dakota and Iowa which show 100% of their legislators belonged to ALEC at the time of the August 2013 ALEC Board report.
Not so much!