K-284 is a short east–west spur highway in northern Lincoln County, Kansas, connecting the town of Barnard to K-14 approximately ten miles (16 km) north of Lincoln. The highway runs for 5.618 miles (9.041 km) from K-14 to Barnard, at which point the road continues east as a county-maintained paved road toward Ada and Minneapolis. K-284 is paved with partial design bituminous pavement and has annual average daily traffic values between 70 and 120. The route is not a part of the United States National Highway System. K-284 was first established between 1973 and 1974.