THE JACKSONVILLE LAND BRIEF
Land in the
Carolina Flatwoods setting.
Jacksonville city has 49.9 square miles of land in Onslow County. Its Census reference point is in Carolina Flatwoods, within Middle Atlantic Coastal Plain.
Low coastal plains contain terraces, estuaries, marshes and barrier islands. Unconsolidated sediments underlie this varied coastal setting, with forest patterns changing near streams and low-lying areas.
Regional context: Middle Atlantic Coastal Plain ↗ · Classification at the Census reference point
Jacksonville and Onslow County
Jacksonville is associated with Onslow County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Jacksonville by land and water
The Census records 7.62 square miles of water within Jacksonville, or 13.3% of its total area. It is 2.6 percentage points lower than the 15.8% recorded for Onslow County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Jacksonville city has 39.4 times the land area of nearby Pumpkin Center CDP (1.27 square miles). These areas describe boundaries, not comparable property prices.

