Census Sources

This Connecticut State Library Pathfinder leads to key Census and demographic information resources on the Web and in this Library, with an emphasis on Connecticut statistics.

    Population Counts  |  Population Estimates  |  Population Projections  | Related Links |  Historical and Genealogical Resources

Sources of Statistical Data

Population Counts Based on the U.S. Federal Census

• Guides to finding Population Statistics derived from the U.S. decennial federal Census

1790   1800   1810   1820   1830   1840   1850   1860   1870   1880   1890   1900   1910   1920   1930   1940   1950   1960   1970   1980   1990   2000

• Table showing general stacks locations of U.S. Census statistical material in the Connecticut State Library

• Measuring America the Decennial Censuses from 1790-2000 (also in the State Library collection at GIRS Ref C 3.2:M 46/2) defines the questions that were asked on each Census
• Population of Connecticut towns as recorded by the Connecticut Secretary of State's Office: 1756-1820, 1830-1890, 1900-1960, 1970-2000
• The Historical Census Browser, posted by the University of Virginia Library includes data from 1790-1960 for all states and counties.
• From State & Local Sourcebook, an overview of demographic statistics on a variety of topics including age distribution race.

Population Estimates

Population estimates are released each year on July 1 for the previous year, using existing data.

• NEW: Town Population Estimates, 2005-2007,  prepared by the Connecticut State Data Center.  State and county estimates also available, as well as growth percentages.
• Population Estimates for Connecticut cities and towns, 1996-2007, prepared by the Connecticut Dept. of Public Health.
• Estimates for 1990-1998 have been posted by the Connecticut Dept. of Economic Development. For earlier population estimates for Connecticut, search the State Library catalog using the keywords “population estimates Connecticut” to find material in the State Library collection.
• The Population Estimates page at the Census Bureau includes estimates for all states, with the most current estimates available.
• More detailed town data in non-Census years can be found in Connecticut Town Profiles.

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Population Projections

Population projections are based on assumptions about future births, deaths, and international migration.

• 2010,2020,2030 Population Projections for Connecticut Towns. Posted by the Connecticut State Data Center in 2007.  Data is presented on a statewide basis, as well as by town and also arranged in five groups: Urban Core, Urban Periphery, Suburban, Wealthy and Rural, corresponding to the five Connecticut "towns" described in a Changing Demographics of Connecticut - 1990-2000, part 2, the Five Connecticuts.
• For earlier population projections for Connecticut, search the State Library catalog using the keywords "population projections Connecticut" to find material in the State Library collection.
• The Population Projections page at the Census Bureau includes projections for all states.

Related Links

Connecticut Dept. of Economic and Community Development

Connecticut Dept. of Public Health

Connecticut Secretary of the State

Connecticut State Data Center

U. S. Census Bureau

 

Historical and Genealogical Resources

Census - Connecticut

• An Introduction to Census Records at the Connecticut State Library : An overview of early census materials.
• Connecticut Census Index, 1790-1850
• Introduction to Colonial and State Records at the Connecticut State Library
• Introduction to the Connecticut Military Census of 1917

Census - United States

• Research Guide to Census Records at the Connecticut State Library : An overview of early census materials.
• Research Guide to Special Federal Census Schedules for Connecticut at the Connecticut State Library
• Frequently Occurring First Names and Surnames from the 1990 Census The Census Bureau has embarked on a names list project involving a tabulation of names from the 1990 Census. These files contain only the frequency of a given name, no specific individual information. The database is searchable by male or female given name, and by surname.
• Twenty censuses : population and housing questions, 1790-1980.  Available at the Connecticut State Library.
• Measuring America : The Decennial Censuses From 1790 to 2000, issued Sept. 2002 by the U.S. Census Bureau.
• United States historical census data browser Searchable historical data from U.S. decennial censuses from 1790 to 1970. Data availability varies by year and state, but are usually presented for the state and county levels.
• Surname to Soundex code Searchable index offers users the opportunity to find names in the Soundex, a system developed by the National Archives to index the U.S. censuses from 1880 onward.

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Prepared by the Government Information and Reference Services Unit, page revised 2/2009.