At about 1800, Higganum Center was the area of most economic activity in the town. The neighborhood had abundant water power, and Higganum Landing was a natural cove and river port. Higganum now encompasses the town's traditional center and remains the shopping and civic center for Haddam. It has a center green with a veterans' memorial, Shad museum, a youth center and a gazebo. The center has a "feed store", three banks, a post office, two liquor stores, a barber shop, dry cleaners, restaurants, Dunkin' Donuts, and now, it even has an ice cream shop!