Population Growth in Connecticut

The Census Bureau has released the 2017 population estimates for all towns in Connecticut. 

From July 1, 2016 to July 1, 2017: 

  • Connecticut's net population grew by an estimated 499 people. 
  • Stamford tops the list as the town with the highest numeric increase of people, estimated at 1,170 people 
  • While Bloomfield had the highest percent increase from 2016 to 2017, with a 3.9% increase. 

The following table lists the top 15 towns ...

CTData and Liberal Arts Action Lab at Trinity College, receive 500 Cities Data Challenge grant!

The Urban Institute and the Robert Wood Johnson Foundation designed this challenge grant to encourage communities to delve into the 500 Cities open-access dataset, to design innovative solutions on social factors that influence health, and to guide local organizations on how to effectively use neighborhood-level data. The broader goal is to promote more comprehensive cross-collaborative approaches to foster a broader “Culture of Health” in urban areas.

By sharing resources and expertise, the Connecticut Data Collaborative ...

CTData and Trinity Liberal Arts Action Lab are hiring!

Come work with us! Full time Communications and Program Assistant at CTData and Liberal Arts Action Lab at Trinity College downtown campus, 10 Constitution Plaza. The CT Data Collaborative will be moving into this new space as of July 1, 2018. To learn more about the position and to see the official posting and apply online visit:

To receive full consideration, we encourage candidates to apply online (with cover ...

Open Data gets Codified! Data Legislation HB 5517 passed!

I'm re-posting an older post where we were looking for support for HB 5517. Great news, the legislation was passed on the last night of the session! Thank you to everyone who advocated, testified, and wrote letters to their legislators. We are excited about the components of the legislation (there's more than only codifying EO#39). Join our open data call on Tuesday from 3-4 to learn more from the State's Chief ...

CTData May Newsletter - Data Forum on May 17th

In our newsletter, you'll find information and registration details for our next event on May 17th, "Data-Sharing: Breaking Down Barriers to Transform Our Work." The event is hosted by Move UP! and CTData will be facilitating a workshop.

April Happenings (for those not on our mailing list)

Why the citizenship question is cause for worry

On our monthly open data calls, we have provided updates on data in the news and the biggest newsmaker by far has been Census 2020. Besides the challenges the Census Bureau has faced in maintaining their federal funding and finding new leadership, a recent hiccup has put the accuracy of the Census 2020 count in jeopardy. 

Several months ago, the Justice department made a request that a question on citizenship be included in the Census ...

Where are Opioid deaths occurring in Connecticut?

Opioid deaths have doubled and tripled in some towns in Connecticut in only six years. Bridgeport, New Haven, Waterbury, and Hartford have the highest rates per population. However, many smaller towns have seen their rates of death triple as well. 

The Connecticut Medical Examiner published accidental drug related deaths from 2012-2017 on We take these data and do a fair amount of cleaning (see Jenna Daly's post, "Accidental Opioid-related deaths in ...

Accidental Opioid-related deaths in CT and the importance of data cleaning

I'd like to call out one data set in particular that requires a little extra attention; explain some of the things we see in the raw data, and share some of my data cleaning steps. The data set I will be talking about is the Accidental Drug Related Deaths by Drug Type data set, sourced from the Connecticut Office of the Chief Medical Examiner, accessed via

Accidental Drug Related Deaths by ...

New Housing Data Portal

Today we are launching what is the beginning of a housing data portal:! This project began as a quest to understand the difference between multiple data sources for a particular indicator. The inquiry evolved into this new data portal focused on multiple sources of housing data. This housing data portal gives users the ability to explore, download, and analyze housing data in your town.

We examined the strengths and weaknesses of different ...

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