Wide-ranging Online Data for Epidemiologic Research -- an easy-to-use, menu-driven system that makes the information resources of the Centers for Disease Control and Prevention (CDC) available to public health professionals and the public at large.
This website offers easy access to statistics and reports on children and families, including: family and social environment, economic circumstances, health care, physical environment and safety, behavior, education and health.
This is a good starting point for finding health statistics. Information is at a national level, but there are links to more specific information at the bottom of each topic page. FastStats are a good quick start.