Center for Disease Control and Prevention (CDC): Data and Statistics
Healthy People 2020 provides science-based, 10-year national objectives for improving the health of all Americans.
A great resource to look at is Ebling Library's "Health Statistics Portal". Many resources have been compiled together and then broken down into separate morbidities, gender, and geographic location.
Please remember the "most current" statistics for the United States may be approximately 2 years old. This is normal as it takes over a year to analyze the data gathered.