Onslow County, county in North Carolina, United States. As of 2020 county had an estimated population of 203,943 inhabitants. The county was created 288 years ago in 1734. Its county seat is "Jacksonville".
There are 9 city/town in Onslow County, NC. The largest city of Onslow County is Jacksonville with a population of 76,284. Other cities include, Piney Green population 13,293, Half Moon population 8,352, Swansboro population 3,394, Holly Ridge population 3,092
Cities, Towns, Neighborhoods & Other Populated Places in Onslow County.
|Half Moon||Census-Designated Place in Onslow County, North Carolina||Onslow||8,352|
|Holly Ridge||City in Onslow County, North Carolina, United States of America||Onslow||3,092|
|Jacksonville||City in Onslow County, North Carolina, United States||Onslow||76,284|
|North Topsail Beach||Town in Onslow County, North Carolina, United States||Onslow||743|
|Piney Green||Census designated place||Onslow||13,293|
|Pumpkin Center||Township in Onslow County, North Carolina||Onslow||2,222|
|Richlands||Township in Onslow County, North Carolina||Onslow||1,689|
|Sneads Ferry||Township in Onslow County, North Carolina||Onslow||2,646|
|Swansboro||Town in North Carolina, United States||Onslow||3,394|