Onslow County Administration Onslow County Administration Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Government Onslow County Administration 234 Northwest Corridor Blvd.Jacksonville, NC 28540 | View on Google Maps 910-347-4717 | fax: 910-455-7878 Visit Site If your business isn't here, contact us today to get listed! Recent Posts Now accepting applications for the 12 days of Christmas holiday Parade The Rustic Barn at Half Moon Ribbon Cutting Annual Meeting Categories Chamber News Member News