Looking to discover great sources of data? Start here!
https://catalog.data.gov/dataset – Data direct from the US Government, from all different branches. It can be hard to search and narrow down, but there might be some good things in here.
American FactFinder – Using data from the US Census, this one is a more friendly search-interface
Pew Research – Organized by topic, this includes many social justice topics, and also includes graphs!
The World Bank – From Agriculture to Urban Development, the data covers a number of years on a variety of topics, displaying into easy-to-read graphs.
Bureau of Labor Statistics – Focusing on jobs, employment, and prices of food, use the Top Picks to get information in a table