East Haddam, CT

ZIP code 06423 belongs to East Haddam, Connecticut, a picturesque town situated along the Connecticut River. The area is home to notable landmarks such as the Goodspeed Opera House, a historic theater known for its Broadway-caliber musicals, and Gillette Castle State Park, featuring the whimsical former home of actor William Gillette. Visitors can also explore the scenic views along the East Haddam Swing Bridge and the Connecticut River Museum.