Below you will find links to a variety of sources for data and statistical information on the city, state, and country level, as well as international resources. There are also some sources for grey literature -- research that is unpublished or published through non-commercial channels.
Grey Literature refers to research produced by organizations outside of traditional commercial publishing channels. This is material created outside of the traditional scholarly communications infrastructure (journals and commercial publishers) which can include dissertations, conference papers, white papers, reports, data -- all things that you won't find on databases like PubMed.