Striving for informed decision-making across Connecticut, we empower an ecosystem of data users by democratizing access to public data and building data literacy.

Striving for informed decision-making across Connecticut, we empower an ecosystem of data users by democratizing access to public data and building data literacy.

Striving for informed decision-making across Connecticut, we empower an ecosystem of data users by democratizing access to public data and building data literacy.

What we do

Data Liberation

We help you understand your data and tell your story.

Data Display

We make public data accessible.

Data Academy

We lead training workshops to build data literacy.

Data Helpline

We connect you to the data you seek.

Explore over 200 datasets
View Datasets by Topic
Featured Projects
Click here to view all projects

Secretary of the State Business Search

Search for businesses operating in Connecticut by name, location, or type

Business Formation Patterns

Historic business formation data in Connecticut

Town Profiles

Explore and compare multiple indicators by town and county.

Racial Profiling Prohibition Project

View traffic stop data for each police district in the state

Data Dashboard for 6 CT Regions

Explore data on a variety of topics for the 6 CT regions – a project of CONNECT

Housing Portal

Explore, download, and analyze housing data in your town

Migration and Population Trends in CT

Is there really ‘mass exodus’ from Connecticut?

SEOW Prevention Data Portal

Bringing together Connecticut’s epidemiological data on substance abuse

Blog

Determining state-to-state migration with tax returns

The IRS has released Migration Data for 2015-2016. These data look at year-to-year address changes reported on individual income tax returns. These data track state and county level in and out flows of tax returns along with providing aggregate Adjusted Gross Income (AGI). A net-migration number for states and counties can be calculated looking at the difference between the inflows and outflows. Even though AGI is provided, it cannot be used to calculate income losses or gains. These back-of-the-envelope calculations can lead…

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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 with the largest numeric population increase between July 1, 2016 to July 1, 2017: Rank Town Numeric…

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Our Team

Michelle Riordan-Nold

Executive Director

Seeks to advance open data statewide and to facilitate data-driven decision making in Connecticut.

Rachel Leventhal-Weiner

Data Engagement Specialist

Contributes to the growing repository of data stories and manages CTData Academy.

Jenna Daly

Data Manager

Wrangles, cleans, and processes the data for the data portal, and creates interactive tools for data exploration.

Ilya Ilyankou

Civic Technologist

Analyzes and visualizes data, writes APIs, and builds technical tools to make data beautiful and accessible.

Morgan Finn

Communications and Program Assistant

Provides overall administrative support and develops print and digital communications.

Find Us

10 Constitution Plaza
Hartford, CT 06103

info@ctdata.org

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