New Castle, DEZIP code 19721 covers the area of New Castle, Delaware. This zip code is home to the New Castle Court House Museum, a historic landmark where Delaware separated from Pennsylvania. Other important landmarks in the area include Battery Park, offering scenic views of the Delaware River, and the historic New Castle Historic District, known for its well-preserved colonial architecture. |
ZIP code 19721New Castle, DEUnited StatesUS > DE > New Castle County > 19721 Daylight Saving:
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