Thrissur is also known as the cultural capital of Kerala due to its rich history, cultural heritage, and numerous festivals. 

Geographically, it is bordered by the districts of Palakkad to the east, Malappuram to the north, Ernakulam to the south, and the Arabian Sea to the west. The district covers an area of approximately 3,027 square kilometers. 

The landscape of Thrissur district is characterized by a varied topography, including hills, valleys, plains, and coastal areas. The Western Ghats mountain range runs along the eastern boundary of the district, while the Chalakudy River and its tributaries flow through the district, providing water for irrigation and drinking purposes. The district has a humid tropical climate, with the monsoon season extending from June to September and a relatively drier season from December to February. 

The district is home to several important towns and cities, including Thrissur city, which is the district headquarters and one of the largest cities in Kerala. Other notable towns in the district include Chalakudy, Kunnamkulam, Guruvayur, Irinjalakuda, and Kodungallur.