According to the 2011 census, the Thrissur Municipal Corporation had a population of 315,906, while the broader Urban Agglomeration holds a population of roughly 1.8 million, making it the third most populous urban agglomeration in Kerala. The population density within the city is high, reflective of rapid urbanization and commercial concentration.
Thrissur boasts an incredibly high literacy rate—consistently hovering above 95%—a hallmark of Kerala's robust focus on education and social welfare. The city is celebrated for its deep religious diversity and harmony. Hindus, Christians, and Muslims make up the major demographic groups, each contributing heavily to the city's unique cultural tapestry.
The local economy and demographic profile are heavily influenced by migration; a significant portion of the working-age population is employed in the Middle East, Europe, and North America. As a result, Thrissur experiences high rates of inward remittances and, consequently, features a demographic trend with a prominent aging population as youth migrate for overseas employment.