Census documents fall into the call number ranges of "C 3.x". In other words, any items that begin with "C 3." from C 3.1 to C 3.186 and beyond are all census materials.
1. Summaries, fact books, and other quick-reference guides to census materials can be found in the Government Documents collection in the College Drive Library. This collection is organized by Sudoc number (an example is given above). Census materials are shelved in their proper SuDoc order within the government publication shelves.
2. Additional Census information is available directly from the Government' Census website.
The 2020 Census counts the population in all 50 states, the District of Columbia, and five U.S. territories (Puerto Rico, American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, and the U.S. Virgin Islands).
The count is mandated by the Constitution and conducted by the U.S. Census Bureau, a nonpartisan government agency. The first national count took place in 1790!