New Castle County Map, Delaware
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New Castle County, Delaware
New Castle County sits at the northern tip of Delaware, bordering Pennsylvania, Maryland and New Jersey. It’s the most populous county in the state.
History runs deep here, with roots stretching back to the 17th century. Two key cities are New Castle and Wilmington, which is the county’s largest city.
People can explore the lush Brandywine Valley or kayak along the Christina River. The county’s location makes it a perfect base for day trips to Philly or Baltimore.
| Category | Details |
|---|---|
| County Name | New Castle County |
| County Seat | Wilmington |
| Population | Approximately 575,000 |
| Cities, Towns, and Communities | Wilmington, Newark, New Castle, Middletown, Bear, Hockessin, Glasgow, Claymont, Elsmere, Townsend, Odessa, Delaware City, Greenville, Smyrna (partial) |
| Interstates and Highways | I-95, I-495, I-295, US 13, US 40, US 301, DE 1, DE 9, DE 141, DE 896 |
| FIPS Code | 10-003 |
| Total Area (Land and Water) | 494 square miles (426 sq mi land, 68 sq mi water) |
| Adjacent Counties (and Direction) | Chester County, Pennsylvania (Northwest), Delaware County, Pennsylvania (North), Gloucester County, New Jersey (Northeast), Salem County, New Jersey (East), Kent County, Delaware (South), Kent County, Maryland (Southwest), Cecil County, Maryland (West) |
| Time Zone | Eastern Time Zone (ET) |
| State | Delaware |
| Coordinates | 39.5795° N, 75.6405° W |
| Etymology | Named after the New Castle in England |
| Major Landmarks | Hagley Museum and Library, Nemours Estate, Delaware Art Museum, First State National Historical Park, New Castle Historic District |
| Website | New Castle County Website |
New Castle County Topographic Map
The northern section features rolling hills and the Piedmont Plateau, with elevations reaching 450 feet at Ebright Road. The southern portion transitions to coastal plains with numerous streams and wetlands flowing toward the Delaware River and Bay.
New Castle County Satellite Map
From above, dense urban areas around Wilmington stand out against green farmland and forests. The C&D Canal cuts a straight blue line across the southern portion.
New Castle County Blank Map
This blank map of New Castle County shows a curved northern border and a straight southern edge. This blank map highlights the county’s location at the top of Delaware.
Neighboring Counties
Here are the 7 neighboring counties of New Castle County:
Delaware County Map
Explore Delaware’s three unique counties. See exactly where New Castle, Kent, and Sussex counties begin and end in this Delaware County map. Perfect for anyone wanting to better understand Delaware’s geography.