Yilan () is a town in and the seat of Yilan County in south-central Heilongjiang, China, located where the Woken () and Mudan Rivers flow separately into the Songhua River. It has a hukou population of 37,000 an , It has 8 residential communities () and 4 villages under its administration. It is serviced by G1011 HarbinâÂÂTongjiang Expressway and China National Highway 221.