Jacksonville is Onslow County's largest town and Jacksonville is the county seat. Onslow County has a total area of 819.44 square miles, with 767.13 square miles of land area. The county's average temperature in January is 44° F and the average July temperature is 79° F. The average rainfall is 56 inches. The elevation of Onslow County is 23 feet above sea level.

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Largest Employers in County
Onslow County Board of EducationEducation and Health Services
Department of DefensePublic Administration
Camp Lejeune MCCSTrade, Transportation, and Utilities
Onslow Memorial HospitalEducation and Health Services
County of OnslowPublic Administration
Wal-Mart Associates IncTrade, Transportation, and Utilities
Coastal Carolina Community CollegeEducation and Health Services
Coastal Enterprises of JacksonvilleEducation and Health Services
City of JacksonvillePublic Administration
Food Lion LLCTrade, Transportation, and Utilities
Labor Statistics for June 2010

Persons Employed:
61,203

Unemployment Rate:
8.0%