Websheriff's office onslow county district attorney 717 court street 602 anne street. Jacksonville, nc 28540 jacksonville, nc 28540 phone: Webonslow county sheriff's office onslow county sheriff's office | | | | other >> government. Onslow county sheriff's office. Onslow county sheriff's office |. Webwhere is the sheriff's office, court house / clerk of courts, jail, and/or magistrate's located? All are located off of court street. The onslow county district courthouse,. Webonslow county sheriff's office. 717 court street jacksonville, nc 28540.
