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Zip Code information for New Castle, Delaware.

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Delaware Zip Codes

New Castle Zip Codes

What are the New Castle, Delaware Zip Codes for 2020, 2019

Primary Zip Codes for New Castle

Zip Code	Primary City	Secondary City
19720	New Castle	New Castle, Minquadale, Manor
19721	New Castle	Citibank

Cities sharing Zip Codes with New Castle

Zip Code	Primary City	Secondary City	More Information
19720	New Castle	Manor
19720	New Castle	Minquadale
19721	New Castle	Citibank

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Content provided by the US Census bureau for the years 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

The Census Bureau can also provide statisics and demographics for 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 and 2009 on their website