F&M College Library

CNX 268: Researching Lancaster

The United States Census

Article 1, Section 2 of the U.S. Constitution states:

"Representatives and direct Taxes shall be apportioned among the several States which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons. The actual Enumeration shall be made within three Years after the first Meeting of the Congress of the United States, and within every subsequent Term of ten Years, in such Manner as they shall by Law direct."

--The Constitution of the United States, United States National Archives

U. S. Census Enumerator, 1940

Introduction to the U.S. Census

Produced by the U.S. Department of Commerce.  Available via What is the 2020 Census?

Census 101: What You Need to Know

County Business Patterns/CBP

1970 CBP Government Document Number: C 3.204:70-40

1990 CBP Government Document Number: C 3.204/3-40:990
(Shelved by state for years 1980 - 1995)

2010 CBP: Access online via the American FactFinder.

Census data: Population and Housing

1950 Population Data: Government Document Number: C 3.950-7/

1950 Housing Data: Government
Document Number: 
C 3.950-8/

2010 Population and Housing Data: Access online via Social Explorer.