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Wilmington, Delaware Map and Directory


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New Castle County, Delaware locator map According to the United States Census Bureau, Wilmington is a City that is located in New Castle County, Delaware at 39.75 degrees North and 75.55 degrees West.  The city's time zone is America/New York, and the city's primary telephone area code is 302.  The land area of Wilmington is about 10.90 square miles, whereas the water area of the city is about 6.04 square miles.  New Castle County's land area is about 426 square miles, so the city occupies about 2.6 percent of the county's total land area.

The Census Bureau estimates that Wilmington had about 71,106 residents in 2017, which is approximately 6,523 people per square mile of land area. 

According to recent American Community Survey data, Wilmington had 29,085 total estimated households and the median household income was about $38,979 per year. 

The Delaware counties map at upper right shows New Castle County, highlighted in red.  Use the menu below to display interactive maps of Wilmington, either in a frame on this page or in full-screen mode. 

Use the menu below to display categorized Wilmington directories. 

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