The rate of child poverty in the United States is shameful. If we don't pay attention to the ever widening gap between the ultra-wealthy and the poor we put an entire generation at risk. Two organizations provide fabulous information to help educate ourselves, our community and our children.
The Center for Child Poverty at Columbia University provides tons of data and public policy information. They provide a 50-states database to retrieve demographic information for your own particular state.
United for a Fair Economy is an activist organization that also provides easy to understand economic data. I especially appreciate access to workshops and training materials - it makes it so easy to present information to a variety of audiences. (I held a wage gap play date a few years ago -- kids played and parents looked at the posters and talked about fair pay).
Teaching Economics as if People Mattered provides similar exercises and lessons geared toward high school students.