Welcome to the Connecticut State Data Center’s Connecticut data distribution page. Included below are a variety of Connecticut datasets from MAGIC, the U.S. Census and other sources. All data are available as downloadable csv files which can be read by most spreadsheet and data programs, shapefiles in Connecticut NAD83 feet and WGS84 projections, KML (for Google Earth), and can be previewed in Google Maps. Methodology related to the data creation is included for U.S. Census datasets and we encourage users to examine the methodology, especially when using the American Community Survey as this will provide insights into how to interpret the margin of error values.
American Community Survey (ACS) |
Decennial Census |
American Community Survey
2011 American Community Survey 1 year Estimates
2012 American Community Survey 1-Year Estimates 
The 2012 American Community Survey (ACS) 1-Year data for Connecticut includes multiple tables pertaining to age, education, households, income, housing and more, for towns with a population of 65,000 or greater. Within Connecticut, 8 towns are included in the 1-Year ACS estimates and includes Bridgeport, Danbury, Hartford, New Britain, New Haven, Norwalk, Stamford, and Waterbury. Included below are the 2012 ACS 1-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2012 | U.S. Census Bureau | ![]() |
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Connecticut 113th Congressional Districts | 113th Cong. Districts |
2012 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2012 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2012 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2012 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2012 | U.S. Census Bureau | ![]() |
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2011 American Community Survey 1 year Estimates
2011 American Community Survey 1-Year Estimates 
The 2011 American Community Survey (ACS) 1-Year data for Connecticut includes multiple tables pertaining to age, education, households, income, housing and more, for towns with a population of 65,000 or greater. Within Connecticut, 8 towns are included in the 1-Year ACS estimates and includes Bridgeport, Danbury, Hartford, New Britain, New Haven, Norwalk, Stamford, and Waterbury. Included below are the 2011 ACS 1-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2011 | U.S. Census Bureau | ![]() |
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Connecticut 112th Congressional Districts | ![]() |
2011 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2011 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2011 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2011 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2011 | U.S. Census Bureau | ![]() |
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2010 American Community Survey 1 year Estimates
2010 American Community Survey 1-Year Estimates 
The 2010 American Community Survey (ACS) 1-Year data for Connecticut includes multiple tables pertaining to age, education, households, income, housing and more for towns with a population of 65,000 or greater. Within Connecticut, 8 towns are included in the 1-Year ACS estimates and includes Bridgeport, Danbury, Hartford, New Britain, New Haven, Norwalk, Stamford, and Waterbury. Included below are the 2010 ACS 1-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2010 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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2009-2011 American Community Survey 3 year Estimates
2009-2011 American Community Survey 3-Year Estimates 
The 2011 American Community Survey (ACS) 3-Year data for Connecticut includes multiple tables pertaining to age, education, households, income, housing and more for towns with a population of 20,000 or greater. Within Connecticut, 54 towns are included in the 3-Year ACS estimates and includes Berlin, Bloomfield, Branford, Bridgeport, Bristol, Cheshire, Danbury, Darien, East Hartford, East Haven, Enfield, Fairfield, Farmington, Glastonbury, Greenwich, Groton, Guilford, Hamden, Hartford, Manchester, Mansfield, Meriden, Middletown, Milford, Naugatuck, New Britain, New Canaan, New Haven, New London, New Milford, Newington, Newtown, North Haven, Norwalk, Norwich, Ridgefield, Shelton, Simsbury, South Windsor, Southington, Stamford, Stratford, Torrington, Trumbull, Vernon, Wallingford, Waterbury, Watertown, West Hartford, West Haven, Westport, Wethersfield, Windham, and Windsor. Included below are the 2009-2011 ACS 3-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut 112th Congressional Districts | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2009-2011 | U.S. Census Bureau | ![]() |
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2008-2010 American Community Survey 3 year Estimates
2008-2010 American Community Survey 3-Year Estimates 
The 2010 American Community Survey (ACS) 3-Year data for Connecticut includes multiple tables pertaining to age, education, households, income, housing and more for towns with a population of 20,000 or greater. Within Connecticut, 54 towns are included in the 3-Year ACS estimates and includes Berlin, Bloomfield, Branford, Bridgeport, Bristol, Cheshire, Danbury, Darien, East Hartford, East Haven, Enfield, Fairfield, Farmington, Glastonbury, Greenwich, Groton, Guilford, Hamden, Hartford, Manchester, Mansfield, Meriden, Middletown, Milford, Naugatuck, New Britain, New Canaan, New Haven, New London, New Milford, Newington, Newtown, North Haven, Norwalk, Norwich, Ridgefield, Shelton, Simsbury, South Windsor, Southington, Stamford, Stratford, Torrington, Trumbull, Vernon, Wallingford, Waterbury, Watertown, West Hartford, West Haven, Westport, Wethersfield, Windham, and Windsor. Included below are the 2008-2010 ACS 3-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2008-2010 | U.S. Census Bureau | ![]() |
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2010-2014 American Community Survey 5-Year Estimates 
The 2010-2014 American Community Survey (ACS) 5-Year data for Connecticut was released on December 3, 2015 and includes multiple tables pertaining to age, education, households, income, housing and more. Included below are the 2010-2014 ACS 5-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut 114th Congressional Districts | 114th Cong. Dist |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Tracts | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2010-2014 | U.S. Census Bureau | ![]() |
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2008-2012 American Community Survey 5-Year Estimates 
The 2008-2012 American Community Survey (ACS) 5-Year data for Connecticut was released on December 17, 2013 and includes multiple tables pertaining to age, education, households, income, housing and more. Included below are the 2008-2012 ACS 5-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut 113th Congressional Districts | 113th Cong. Dist |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Tracts | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2008-2012 | U.S. Census Bureau | ![]() |
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2007-2011 American Community Survey 5-Year Estimates 
The 2007-2011 American Community Survey (ACS) 5-Year data for Connecticut was released on December 6, 2012 and includes multiple tables pertaining to age, education, households, income, housing and more. Included below are the 2007-2011 ACS 5-Year Estimates for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Tracts |
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2007-2011 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2007-2011 | U.S. Census Bureau | ![]() |
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2006-2010 American Community Survey 5 year Estimates
2006-2010 American Community Survey 5-Year Estimates 
The 2006-2010 American Community Survey (ACS) 5-Year data for Connecticut was released on December 8, 2011 and includes multiple tables pertaining to age, education, households, income, housing and more. Included below are the 2006-2010 ACS 5-Year data for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data. This data is also accessible via the American FactFinder.
Want to know how (or if) you can compare data from the American Commuity Survey with Decennial Census data? View the ACS Comparison Guide
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Tracts |
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2006-2010 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2006-2010 | U.S. Census Bureau | ![]() |
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Decennial Census – 2010
2010 Census Summary File 2 for Connecticut
2010 Census Summary File 2 for Connecticut 
The latest 2010 Census data can be found using the American FactFinder or for advanced users, you can access this data directly via the U.S. Census FTP server. The 2010 Census Summary File 2 data for Connecticut was released on January 13, 2012 and includes multiple tables pertaining to race and ethnicities. Included below are the 2010 U.S. Census Summary File 2 data for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data.
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut New England City and Town Areas (NECTA) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut 111th Congressional Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Counties | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Senate Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut House Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Towns (County Subdivisions) |
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2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Census Designated Places (CDP) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Elementary School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Secondary School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Unified School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Zip Code Tabulated Areas (ZCTA) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
Connecticut Tracts |
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2010 | U.S. Census Bureau | ![]() |
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Coming Soon |
2010 Census Summary File 1 for Connecticut
2010 Census Summary File 1 for Connecticut 
The latest 2010 Census data can be found using the American FactFinder or for advanced users, you can access this data directly via the U.S. Census FTP server. The 2010 Census Summary File 1 data for Connecticut was released on June 30, 2011 and includes multiple tables pertaining to population, age, sex, race, ethnicity, relationship, household, and housing data. Included below are the 2010 U.S. Census Summary File 1 data for Connecticut at multiple levels of geography in spreadsheet format (.csv) which includes a codebook for each dataset. A geodatabase file is provided for ArcGIS users to easily join and map this data.
Dataset | Geography | Year | Source | Codebook | Spreadsheet![]() |
Geodatabase![]() |
Connecticut (Statewide) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut New England City and Town Areas (NECTA) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Senate Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut House Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2010 | U.S. Census Bureau | ![]() |
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Connecticut Census Designated Places (CDP) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Elementary School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Secondary School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Unified School Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Zip Code Tabulated Areas (ZCTA) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Tracts |
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2010 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Blocks |
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2010 | U.S. Census Bureau | ![]() |
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2010 Census Demographic Profile for Connecticut
2010 Census Demographic Profile for Connecticut 
The latest 2010 Census data can be found using the American FactFinder or for advanced users, you can access this data directly via the U.S. Census FTP server. The 2010 Census Demographic Profile data for Connecticut was released on May 11, 2011 and includes population, age, sex, race, ethnicity, relationship, household, and housing data. From the links below, users can download the data for Connecticut by multiple geographies from the spreadsheet link in .csv format. Each of these geographies include multiple attributes and a codebook is provided for each dataset to assist users with using this data.
Dataset | Geography | Year | Source | Summary Report | Metadata | Spreadsheet | Shapefile |
KML | Preview in Google Maps |
Connecticut (Statewide) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut 111th Congressional Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut State House Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut State Senate Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2010 | U.S. Census Bureau | ![]() |
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2010 Census Redistricting Data and Shapefiles (Public Law 94-171)
2010 Census Redistricting Data and Shapefiles (Public Law 94-171) 
The latest 2010 Census data can be found using the American FactFinder or for advanced users, you can access this data directly via the U.S. Census FTP server. The 2010 Census Redistricting data (Public Law 94-171) data was released on March 9, 2011 and includes population, race, ethnicity, voting age (18+), and occupancy data.
Dataset | Geography | Year | Source | Summary Report | Metadata | Spreadsheet | Shapefile |
KML | Preview in Google Maps |
Connecticut (Statewide) | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Not Available |
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Connecticut 111th Congressional Districts | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Counties | ![]() |
2010 | U.S. Census Bureau | ![]() |
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Connecticut Towns (County Subdivisions) |
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2010 | U.S. Census Bureau | ![]() |
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Connecticut Tracts |
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2010 | U.S. Census Bureau | ![]() |
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Connecticut Block Groups | ![]() |
2010 | U.S. Census Bureau | Not Available |
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Not Available |
Not Available |
Connecticut Blocks* |
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2010 | U.S. Census Bureau | Not Available |
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Not Available |
Not Available |
* Two blocks were incorrectly reported in Groton, CT and the full details on this errata are available in the 2010 Redistricting (Public Law 94-171) Connecticut errata report.
Decennial Census – 2000
2000 Census Shapefiles
Visit the MAGIC Connecticut GIS Data page to download 2000 Census shapefiles. Note: The shapefiles on the MAGIC Connecticut GIS Data page are boundary files for the 2000 Census and do not include data. To obtain 2000 Census data visit the American FactFinder.
Decennial Census – 1990
1990 Census Shapefiles
Visit the MAGIC Connecticut GIS Data page to download 1990 Census shapefiles. Note: The shapefiles on the MAGIC Connecticut GIS Data page are boundary files for the 1990 Census and do not include data.