Census records are available on a variety of subscription and other websites. The census records are available online at Family History Centers. In the event that you will need to consult the 1841 to 1891 census on microfilm, consult the library catalogue.
There is statistical data available for the census years 1801 to 1931 that records the number of houses, families, people, and other statistical data for every parish in Suffolk.
Refer to the Suffolk Census wiki article for details about the Census.