The ZIP code 07821 serves the borough of , located in Sussex County . While the borough itself is the primary locality, the 07821 boundary also covers portions of neighboring Byram and Green Townships . Geographic and Administrative Profile
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Roughly 44% of residents hold a bachelor's degree or higher, significantly above the national average. The ZIP code 07821 serves the borough of
The central Andover Borough is small, covering roughly 1.36 square miles. covering roughly 1.36 square miles.