Federal censuses for the state of Connecticut began in 1790, and continue every ten years thereafter. They are currently available through 1930. There is a special index from 1790 to 1850 at the Connecticut State Library, taken from a duplicate set of schedules housed at the Connecticut State Archives. It is not collated in the same way as the “official” set at the National Archives and consequently cannot be used for locating a particular individual on that set of returns.
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No state population censuses were taken for Connecticut, although a number of inventories and enumerations of population exist (with and without names). A unique census, however, was taken by Connecticut in the twentieth century. The Military Census of 1917 listed all males between at least twenty to thirty years of age, although most towns reported those sixteen through sixty. Given along with the name and age, were place of birth and number of dependents, ability to perform certain tasks, and occupation.
- Fairfield County, Connecticut Census
- Hartford County, Connecticut Census
- Litchfield County, Connecticut Census
- Middlesex County, Connecticut Census
- New Haven County, Connecticut Census
- New London County, Connecticut Census
- Tolland County, Connecticut Census
- Windham County, Connecticut Census