Sipajhar is one of the main towns in Darrang district of Assam, India. It is around 50 km away from Dispur, capital city of Assam. The district headquarters of Mangaldoi is around 15 km from Sipajhar. National Highway 15 (India) goes through the town. It is about 15 km away from the headquarters town of Darrang district, Mangaldoi. The town is also a major bus stop.