Northshore Technical College Sullivan Main Campus sits on approximately 16.9 acres of land in Bogalusa, Louisiana. It is easily accessed from Highways 21, 10, and 41.

Sullivan Main Campus is located at 1710 Sullivan Drive, Bogalusa, Louisiana. The campus serves citizens of St. Tammany, Tangipahoa, and Washington Parishes as well as Walthall County, Mississippi.

Sullivan Main Campus has two extension campuses. The Sullivan Instructional Service Center located at 425 Ozone Park Road, Covington, Louisiana and the B. B. "Sixty" Rayburn Correctional Center Extension Campus located at 27268 Highway 21, Angie, Louisiana. Each extension campus has a coordinator function supported by the Assistant Dean of the Main Campus.