Use Social Explorer to look at demographic information (e.g. census, economic, election data etc.) in a visually useful way.
State Stats offers easy-to-use social & demographic data for all 50 U.S. states for the past 15 years. Data can be mapped, graphed or exported to Excel.
A full-text primary source archive of public opinion, surveys, and data. It covers a wide variety of topics, including politics, the economy, education, the environment, labor, race, religion, and more.
Dates: 1935 CE-present.
Public opinion polls and surveys on current events around the world. Includes charts and survey questions.
Dates: 1986 CE to present
Archive of research in the social and behavioral sciences, with collections of data in education, aging, criminal justice, substance abuse, terrorism, social media, and other fields. Includes a bibliography of publications related to data.
Socioeconomic and demographic data from 1790-2000.
Dates: 1790-2000 CE
The general rule for citing data is to stick with the style for citing a journal article. Definitely include the creator, title, year of publication, publisher (usually the archive in which it is found), edition or version, and access information (e.g. a URL).
The idea is to give credit to the author or producer of the data, and give information to allow others to find the data you found.
Citing a map from Social Explorer? The database offers advice and examples on how to cite their maps.
The Census and the ACS are two different surveys that have similar, and sometimes overlapping, questions and topics. It's important to keep in mind that different questions are asked in different years when comparing data across time. Check out the Census Bureau's FAQ Guide for comparing ACS data to Census data.