Kottayam is a city in the Kottayam district of Kerala, India. It is the district headquarters of the district and is located about 151 km (93.8 mi) north of the state capital Thiruvananthapuram. As per the 2011 Indian census, Kottayam has a population of 489,615 people, and a population density of 4,533/km2 (11,740/sq mi). The total Kottayam Metropolitan area has a population of 802,419 people, and a population density of 3,647/km2 (9,450/sq mi).