State highway in Sussex County, New Jersey, United States
Route 284 is a 7.03-mile (11.31 km) state highway in New Jersey, United States, running from Route 23 in Sussex north to the New York state line in Wantage Township. From there, New York State Route 284 (NY 284) continues north to U.S. Route 6 (US 6) at Slate Hill. The route is a connector to Unionville, and intersects with an old alignment of its original designation, Route 84. Route 284 was first a part of Route 8 in the 1920s, becoming Route 8N in 1927 and Route 84 in 1942 before being assigned its current number in 1966.