New Castle County on the map of Delaware 2024. Cities, roads, borders and directions in New Castle County of Delaware.

New Castle County is situated on the northern edge of Delaware. This glorious county was formed in 1664. The county is populated by 572 thousand people. The county seat of New Castle County is Wilmington. The total area of the county is about 494 square miles. This map shows the borders of New Castle County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of New Castle County.