Changanacherry is an urban agglomeration in Kottayam district in the state of Kerala, India, located 18 km south of Kottayam and 8 km north of Thiruvalla on the Main Central road. With a population of about 50,000, its population was already 36,000 as early as the 1951 census. The town is situated near the tripoint of Kottayam, Alappuzha and Pathanamthitta districts.