From MSNBC's David Shuster
165,000 in so far. Based on precincts still to report (urban areas), the total will be 185,000 to 200,000.... A tidal wave on Dem side compared with 125,000 from 2004.

*** UPDATE *** From NBC's Domenico Montanaro
The Iowa Democratic party says, "With 93.5 percent of the precincts reporting we are seeing record turnout with 218,000 caucus attendees."