CONFIRMED:
Seattle Sounders FC ---------
32,000 (2010)
Toronto FC -------------------
16,000 (2012)
Portland Timbers FC ---------
14,750 (2012)
Vancouver Whitecaps FC ----
13,000 (2012)
Philadelphia Union -
12,000-13,000 (2011)
Houston Dynamo ------------
12,000 (
2012)
Sporting Kansas City ---------
11,000 (2011)
Montreal Impact --------------
8,000 (2012)
Los Angeles Galaxy -----------
7,500 (2012)
Real Salt Lake ---------
7,000-8,000 (2011)
Chicago Fire -------------------
6,000 (2012)
Columbus Crew ---------------
5,000 (2012)
San Jose Earthquakes ---------
4,000 (2012)
Colorado Rapids --------------
3,500 (2012)
UNCONFIRMED:
Red Bull New York ----------- 7,800 (2012)
MISSING:
Chivas USA, DC United, FC Dallas, NE Revolution,
http://forums.bigsoccer.com/threads/new-and-improved-season-ticket-holder-count.1944405/