Onslow County | |
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![]() Onslow County Courthouse | |
![]() Location within the U.S. state of North Carolina | |
![]() North Carolina's location within the U.S. | |
Coordinates: 34°46′N 77°30′W / 34.76°N 77.50°W | |
Country | ![]() |
State | ![]() |
Founded | 1734 |
Named for | Arthur Onslow |
Seat | Jacksonville |
Largest community | Jacksonville |
Area | |
• Total | 905.20 sq mi (2,344.5 km2) |
• Land | 762.08 sq mi (1,973.8 km2) |
• Water | 143.12 sq mi (370.7 km2) 15.81% |
Population (2020) | |
• Total | 204,576 |
• Estimate (2023) | 213,676 |
• Density | 268.44/sq mi (103.65/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 3rd |
Website | www |
Onslow County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population was 204,576.[1] Its county seat is Jacksonville.[2] The county was created in 1734 as Onslow Precinct and gained county status in 1739.[3] Onslow County comprises the Jacksonville, NC Metropolitan Statistical Area. The southern border of the county is the coast of the Atlantic Ocean.
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