Census Data
Quick, easy access to facts about people, business, and geography - state & county. Statehealthfacts
This site designed to provide free, up-to-date, and easy-to-use health data for all 50 states. It provides data on more than 700 health topics and including the Kaiser Family Foundation.
International
WHOSIS / Global Health Observatory
The gateway page to the World Health Organization's (WHO) datasets, reports, press releases and other publications.