Norwalk, CT

ZIP code 06859 is a PO-box postal code associated with Norwalk, Connecticut, rather than a distinct, reliably mapped neighborhood, so specific landmarks cannot be assigned to it geographically. Notable landmarks in Norwalk include the Lockwood-Mathews Mansion Museum and the Maritime Aquarium at Norwalk; both are in the wider city, but should not be described as being within ZIP code 06859.