EJScreen - This mapping tool from the EPA allows you to enter a specific city and receive reports with demographic, health, and environmental data. It may take a few minutes to load as it generates the map. Note that the scope of information varies depending on the type. Most is available at the state and national level.
Statistical Abstract of the United States (through 2012) or Reference Room U.S. Documents Stacks - C 3.134:year - This annual publication gathers statistics in various subject areas. Note that the scope of the information varies. Most is available at the national level.
Statistical Abstract of the United States (2013-present) or Reference Room U.S. Documents Stacks - HA 202.P 76 - Same as above, but published via ProQuest instead of the Census Bureau. This version is searchable by keyword as well as browsable by Subject. Note that if you are accessing this source off campus, you will need to log in with your W# and library pin (6 digit birthdate).