In March, the Census Bureau released its Vintage 2025 County Population Estimates – which, in Connecticut, are for our nine “county-equivalent” planning regions. The data include annual total population estimates for states and counties or county-equivalents for July 1, 2020, to July 1, 2025, as well as estimated “components of change” – births, deaths, and migration – between each year.
Read on to learn about how Connecticut’s population has changed, overall and by planning region.
Read MoreWhat does it take to share data responsibly across institutions and state systems? In this conference panel, leaders from government, academia, and national data intermediaries discuss real-world approaches to data governance, trust-building, and scalable data sharing across education and workforce systems.
Read MoreApril 1 marks Census Day, a once-in-a-decade event with significant financial implications for Connecticut. While the decennial census is often seen as a simple population count, it plays an important role in determining how federal funding is allocated. For Connecticut, that translates to billions of dollars each year that support health care, education, housing, and other essential services. Read more.
Read MoreOn Thursday, March 12, the Hartford Youth Data Fellows welcomed a team from Hartford Votes-Vota Coalition for an engaging and informative session focused on civic participation in Hartford. The visit brought together 10 current fellows along with 3 alumni who are continuing their work as youth researchers studying access to sports and recreation across the city.
Read MoreDr. Whitney Battle-Baptiste explored W.E.B. Du Bois’s groundbreaking data visualizations from the 1900 Paris Exposition and what they teach us about equity, data storytelling, and designing data with people at the center.
Read MoreThe federal data system has undergone significant changes this past year, impacting everything from national policy to specific issue areas.
But how can Connecticut advocates track these shifts and ensure the data we rely on remains accurate and accessible?
Read MoreIn September, 2025, we conducted an analysis of data from the Deportation Data Project to get a picture of Immigration and Customs Enforcement (ICE) activity in Connecticut. Using this same dataset, we analyzed the currently available data, which now goes to October 2025. In this post, we take a fresh look at ICE apprehensions in Connecticut and compare Connecticut to other New England states.
A quick note about the data: The Deportation Data Project dataset includes ICE arrests and related activity in Connecticut through October 2025. More about this dataset and how we used it can be found at the end of this post.
Read MoreConnecticut consistently issues new housing permits at a much lower rate than the nation as a whole. From 2020 to 2024, the national rate of new permits has been roughly three to four times higher than Connecticut’s. Read more.
Read MoreIn our recent Community of Practice session, we focused on something many of you have asked for: frameworks for thinking about equity in data. This conversation introduced several high-level frameworks that help us ask better questions about power, accountability, and community impact in our data work. Read more.
Read MoreThe Hartford Neighborhood Data Platform (HNDP) is a data exploration tool developed by CTData Collaborative to empower city and community organizations, policymakers, and residents with access to neighborhood-level data.
Read MoreIn Connecticut there are 480,258 households who rent their homes. Based on household income, as many as 367,252 households may qualify for a rental subsidy. Meaning more than 75% of rental households may qualify for a rental subsidy if there was enough subsidy available.
Read MoreFair Rent Commission (FRCs) requirements were expanded during Connecticut’s 2025, special legislative session, by lowering the population threshold for requiring FRCs. This change now requires an additional 33 municipalities to establish a Fair Rent Commission (FRC). Read more here.
Read MoreFrom the 2021 to 2025 municipal election, voter turnout increased from 32% to 36% statewide. This represents almost 85,000 additional voters in the most recent election. Of the 158 towns that had a municipal election in both 2021 and 2025, almost three in four saw a higher turnout in 2025. In this blog post, we explore differences in voter turnout by town.
Read MoreThis year, there have been significant proposed federal funding cuts to Medicaid and other assistance programs. Recent policy shifts are reshaping access to health care, nutrition supports and other services. Young children (ages 0 to 3), one of the most vulnerable populations, will be affected by these changes.
To better understand the landscape of Medicaid in Connecticut for young children, we analyzed several key measures from the Connecticut Department of Social Services Medicaid data, such as enrollment and developmental screenings, along with participation in other services such as the Supplemental Nutrition Assistance Program (SNAP) and the Special Supplemental Nutrition Program for Women, Infants, and Children program (WIC).
Read MoreIn this post, we will use ACS data to analyze how Connecticut’s home heating landscape is evolving. We review state, regional, and national trends, explore differences within the state, and consider what these trends may mean for future policy and the path toward decarbonizing home heating. Results in this post will refer to 2024 1-year ACS data unless otherwise specified.
Read MoreIn response to the federal data system going black in January of this year, we at CTData have been partnering with local organizations to bring people together across the state to share information about what we know about changes to federal and state data, and also to help folks connect locally around data and strategies they can use to best serve their region. On October 30, 2025, we partnered with Norwalk ACTS to bring this event to Norwalk. This post includes highlights from this session, but can’t do justice to the excellent presentations and conversations. Read this post to find many ways you can stay informed and take action!
Read MoreCTData is pleased to announce that the organization is one of 30 grantees nationwide to be awarded the Local Data for Equitable Communities grant, an initiative funded by the Robert Wood Johnson Foundation in collaboration with the Urban Institute to support local communities in using data to improve local conditions and help residents live their healthiest lives. This grant allows CTData to provide data and insights to address the barriers Hartford families face in accessing quality sports and recreation amenities for their families. During the past 20 years, youth and families in Hartford have experienced a disinvestment in local amenities such as fewer recreation centers, shorter pool hours, and fewer affordable program options, despite the clear need for physical and social development. The grant offers CTData the ability to extend its work to elevate resident voices to address policy challenges using data.
Read MoreHow can we ensure that we can provide services without risking people’s safety when sharing information? This concern has grown in recent months, and many organizations in Connecticut are seeking guidance. Dr. Eric Giannella of the Massive Data Institute presented to Connecticut organizations and provided practical steps we can take to safeguard our data.
Read MoreIf you're a Connecticut resident, you have likely heard of Willimantic. But did you know that Willimantic isn't officially a "Town" but is part of the "Town" of Windham? This and other idiosyncrasies may make finding data about a place you're interested tricky. In this webinar you’ll learn how the Census Bureau categorizes different kinds of places in Connecticut, and shows you how to access these places through data.census.gov, the Census Bureau's data portal.
Read MoreIn July, we held a session discussing data visualization design principles centered around equity and accessibility. We explored how our design decisions for data visualizations could potentially exclude parts of our audiences, shaping who can gain insights from the data and who isn't. We also examined what accessibility means, best practices for inclusive design, and heard from several CTData staff members who have made adjustments to their own work.
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