East Haddam, CT

ZIP code 06423 covers the town of East Haddam, Connecticut. This picturesque area along the Connecticut River is home to notable landmarks such as the Goodspeed Opera House, a historic theater known for its musical productions, and Gillette Castle State Park, featuring a unique stone castle built by actor William Gillette. Visitors to 06423 can also enjoy outdoor activities like hiking, fishing, and boating in this charming New England town.