Here are some sites that provide census data for the US:
Governmental branches and agencies produce prodigious amounts of information and data.These resources are available to the public and may be found in print and, more recently, in digital format. Use our Government Documents research guide for more information.
The Federal Depository Library Program was established by Congress to ensure that the American public has access to its Government’s information. GPO administers the FDLP on behalf of the participating libraries and the public. Information products from the Federal Government are disseminated to these nationwide libraries that, in turn, ensure the American public has free access to the materials, both in print and online.
Perkins Library was designated a federal documents depository in 1944. The library currently receives approximately 20% of the documents made available through the program. Many documents can be searched and accessed through the online catalog, but several are located throughout the General Collection on the lower floor of the library.