Changing the way Connecticut uses data.

The Connecticut Data Collaborative is a public-private partnership that advocates for the public availability of open and accessible data to drive planning, policy, budgeting and decision making in Connecticut at the state, regional and local levels. We are a user-driven organization, serving nonprofits, advocates, policymakers, community groups, and funders in using data to drive policy and improve programs and services.

In addition to providing open access to structured and processed data, we can also work with you on to solve your custom data needs. Contact us for more information.



Our data portal contains over 135 datasets that we have curated and processed into a machine-readable structure. Use our custom data-exploration tools to narrow your selection, or download raw data in bulk and explore data on your own. You can browse by topic, search by organization, or search by dataset.

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Recent Data Updates


2017 Connecticut Town Profiles Now Available

Updated Connecticut Town Profile data now available at This is a project in partnership with the Connecticut Economic Resource Center, Inc (CERC). The Connecticut Data Collaborative annually updates 54 datasets that are contained in the profiles. Data are accessible in two ways: 

  1. Through the interactive tables which allows one to compare multiple municipalities or 
  2. Via a two-page PDF similar to what was previously produced by CERC 
Both 2016 and 2017 versions of ...

Another CT Data Day in the books: Synthesize!

On Friday, June 23rd, we convened the second of our 2017 CT Data Days conference series. Following up on the success of "Equip" back in March, this time, we organized a conference around the theme, "Synthesize." Issues related to data collection and analysis are perrenial challenges for many of our users. To respond to this need, we organized several panels focused on using data to tell stories and strategizing around how to collect new data ...

Migration and Population Trends in CT

Population change is a popular topic - we seem to remember the people that leave but what about the people that move into the state? And often we hear about one statistic or one source of data on migration. In this story we look at the big picture using multiple public data sources. We look underneath the topline numbers to understand if the steady drumbeat that ‘young people are leaving' or that the 'wealthy are leaving ...

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