United States Censuses 1850-1920—Free Internet census indexes and images to the 1850, 1860, 1870, 1880 (index only), 1900, and 1920 (partial index only) can be viewed on the FamilySearch Record Search. These indexes show every name listed on the census, and except for 1880 and 1920, are also linked to census images including information about each person’s residence, age, birthplace, occupation, other family members, and neighbors.
1790-1930 Census--The Family History Library has the U.S. federal censuses on microfilm for Connecticut from 1790, 1800, 1810, 1820, 1830, 1840, 1850, 1860, 1870, 1880, 1900, 1910, 1920 to 1930.
1890 Census--The 1890 census was destroyed.
PLEASE NOTE: Not all areas of the US have been indexed for 1900, but they can be searched in a section called Browse unindexed images.
1788--Connecticut was the 5th state to enter the Union in 1788.
1790-1860--The library has book, film, and microfiche indexes of the 1790, 1800, 1810, 1820, 1830, 1840, 1850, and 1860 censuses. The Connecticut State Library and the Family History Library also have an index to the entire 1790 to 1850 censuses (listed in the Family History Library Catalog under CONNECTICUT - CENSUS - INDEXES). The page numbers of this index do not always match those on microfilms at the National Archives and the Family History Library.
Soundex--A soundex (phonetic) index is available for part of the 1880 census and all of the 1900, 1920 and 1930 censuses.
Ancestry--All Connecticut census records are indexed at Ancestry.
1670--A reconstructed census of over 2,300 heads of families recorded in tax lists and other records is Jay Mack Holbrook, Connecticut 1670 Census (Oxford, Massachusetts: Holbrook Research Institute, 1977; Family History Library book 974.6 X2h 1670).
1917 Census--The Connecticut State Library also has a special military census taken in 1917.
1850 United States Census Mortality Schedules—A free Internet index and images to the 1850 United States Census Mortality Schedules can be viewed on the FamilySearch Record Search - Pilot Site. Mortality schedules provided nationwide death statistics for the twelve months prior to the 1850 census. Key genealogical facts found on the 1850 mortality schedule are: Name, age, sex, color, married or widowed, birthplace, month of death, occupation, cause of death.
State and Territorial Censuses
Connecticut does not have a state census or a territorial census.
FamilySearch Record Search has free indexes and images for 1850, 1860, 1870, and 1900; but indexes only for 1880, and 1920.
Heritage Quest Online: http://www.heritagequestonline.com
Census Online: http://www.census-online.com/links/CT/
Genealogy Today: http://dir.genealogytoday.com/usa/ct/census.html
Access Genealogy: http://www.accessgenealogy.com/census/connecticut.htm
Mortality Schedules: http://mortalityschedules.com/