Castle Hayne, NC is a city located in New Hanover County, North Carolina and has a land area of 39.71 square miles (102.85 km2). The water area for the city is 2.23 square miles or 5.78 km2. There is one unique zip code in Castle Hayne, North Carolina and it is 28429. The area code(s) for Castle Hayne is 910.
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