The Montgomery County GreenFest is the largest annual environmental festival in Montgomery County, MD. GreenFest is organized by a coalition of public and non-profit partners. Join us at GreenFest 2026 and come together to learn, explore and continue your journey to improving our community, our health and our environment!

Stop by and visit the 100+ exhibitors and vendors, learn about Electric vehicles, drop off household batteries for recycling, and participate in the many hands-on activities for all! 

Follow us on social #MCGreenFest or visit the Montgomery GreenFest website for details.