Statewide Data Resources

CT State Data Center

The Connecticut State Data Center (CTSDC) is the State’s lead agency in the U.S. Census Bureau’s State Data Center Program that makes data available locally to the public.

Connecticut State Data Center Mission

The Center’s mission is to assist the state in meeting its obligations to provide reliable, timely population estimates and projections, to enable the state to evaluate the accuracy of official federal counts of Connecticut’s population, to enhance state and municipal capacity to develop and evaluate policies, and to plan future development.

The Connecticut State Data Center efforts align with the U.S. Census Bureau’s State Data Center Core Competencies which include:

  • Program Administration
  • Data Dissemination
  • Data Analysis, Technical Assistance, and Consultation
  • Customized Programming/Product Development
  • Education and Promotion of Censuses
  • Training
  • Assistance with Census Operations
  • Web Presence
  • Participation in Midyear or Annual National Meetings

Services offered by the Connecticut State Data Center

  • Assistance with location U.S. Census and other Federal and State datasets
  • 2010 Census data in spreadsheet and mappable formats for download
  • Mapping and Spatial Visualization of Data
  • Workshops on the New American FactFinder
  • Data and project consultations
  • American Community Survey (ACS) data assistance
  • Assistance with locating U.S. Census Data and other Federal and State datasets
  • Value-added data analysis
  • Population projection data for Connecticut
  • Digital archiving of data produced and processed by the Connecticut State Data Center
  • FGDC metadata creation datasets provided by the Connecticut State Data Center
  • Presentations on data pertaining to Connecticut

Connecticut’s Open Data Initiative

Connecticut’s Open Data initiative was launched in February of 2014 by Executive Order No. 39 of Governor Dannel. P. Malloy.

The purpose of the order is to provide open access to data in its rawest form, before it has been aggregated and analyzed.

Analysts, academics, entrepreneurs and all members of the public will have the opportunity to use open data. The online data portal gives users the opportunity to visualize data through graphs or charts and on maps when applicable.

The executive order instructs agency heads to make public data openly available while continuing to safeguard information that must be kept secure.

Open Budget & Open Checkbook (State Comptroller’s Office)

Open Checkbook

Open Checkbook allows citizens to view who received payments from the state for goods or services and how much they received. The application allows the user to drill down from aggregated spending accounts all the way down to each individual payment to a payee.


OpenBudget displays state expenditures and revenues. It allows the user to compare how state spending tracks against what was budgeted. The site is updated after the close of each monthly accounting period.

Hartford Open Data

Data made available by the City of Hartford. Examples of datasets one can find include but not limited to: budget data, GIS data, and housing and property data.

Connecticut Health Improvement Coalition

Established in January, 2013, The Connecticut Health Improvement Coalition is a diverse partnership of local, regional, and statewide organizations and agencies that address public health from a variety of traditional and non-traditional perspectives. The implementation framework for the coalition is based on the Connecticut State Health Improvement Plan(SHIP). DPH provides a leadership role in convening coalition partners and facilitating a collaborative process to successfully implement the SHIP. The strength of the Coalition is the active participation of partners from across the state working together to connect health improvement efforts, leverage activities, maximize resources, and build upon existing infrastructure.