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Congrats to our 2025 Gold Certified Communities

Learn more by visiting our Participating Communities map.

Congrats to our 2025 Silver Certified Communities

Learn more by visiting our Participating Communities map.

Congrats to our 2025 Bronze Certified Communities

Learn more by visiting our Participating Communities map.

Congrats to our 2025 Climate Leaders

Learn more by visiting our Participating Communities map.

You're Invited!

Join us in celebrating our 2025 certified communities and Climate Leaders. Register early - space is limited!

The IMPACT

Joanna Wozniak-Brown joins us to discuss Sustainability and Resiliency Week.

Sustainable CT Coffee Hour

Join us for a conversation about the Connecticut Green Bank's Fleet Electrification Accelerator.

Actions & Impact

Stay up to date with the latest and greatest Sustainable CT news - Learn more

Have a great idea?

We have funds and coaching to support sustainability projects in your community.

Free training, resources, tools

We’re eager to help your community become more sustainable - Learn more

What's New?

Congratulations to all of our 2025 certified commuinities and Climate Leaders!

The October Sustainable CT Coffee Hour: Accelerating School Bus Electrification for School Districts - CT Green Bank’s Fleet Electrification Accelerator.

You're invited! Please join us for our 2025 Awards Celebration at the Goodspeed Opera House on October 28.

Climate Leader Designation

Celebrating municipalities that are reducing harmful greenhouse gas emissions while saving money, improving public health, and building community.

Learn More

Community Match Fund

A fast, flexible program to support sustainability initiatives throughout Connecticut. Get inspired to start your own Community Match Fund campaign by viewing our flipbook of recent projects.

Get Inspired

Participating Communities

View the map of Connecticut’s registered communities. Search the completed actions database.

View Map

Certification Program Statistics

If your municipality is not yet registered with Sustainable CT, or if your town is registered but has not yet considered working towards certification, please contact us. We’d be happy to speak with you, provide any information you may need, and discuss next steps.