|Onslow County North Carolina Cities/Towns - Camp Lejeune, Half Moon, Hubert, Jacksonville (County Seat), Piney Green, Pumpkin Center, Richlands, Sneads Ferry, White Oak
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Onslow County is a county located in the U.S. state of North Carolina. As of 2016, the population was 187,136. Its county seat is Jacksonville
Onslow County was formed in 1734 and was named for the Honorable Arthur Onslow, Speaker of the British House of Commons.