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U.S. ZIP Code 19721
5-digit United States postal code #19721, New Castle, DE
ZIP: 19721
County: New Castle
Place Name: New Castle
State: Delaware
State Abbreviation: DE
Coordinates: 39° 33' 52.2" N, 75° 35' 49.2" W
Latitude: 39.564500000000
Longitude: -75.597000000000