Occasionally a student will come see me looking for data on New York city. A tremendous resource I’ve found is Baruch College’s NYCdata site. There are currently 18 categories, which include education, culture, population and geography, international trade, and labor force.
All of the information is available for free- there is some seriously useful statistical data on this site. It appears that the last update to the site was in September 2010, and the data sets I examined appear to be current through 2008-2009.