Tamil Nadu Caste Map: How Geography Shapes Electoral Power Across Regions

Tamil Nadu’s electoral politics is deeply shaped by the interplay of caste and geography. From the Vanniyar influence in the northern districts to the Gounder stronghold in western Tamil Nadu, and the Mukkulathor (Thevar) presence in the southern belt, regional caste concentrations continue to influence voting patterns, candidate selection, and political outcomes. Alongside these blocs, Scheduled Castes form a significant statewide voter base, while Nadar influence remains concentrated in southern districts. This explainer breaks down how geography and caste together shape Tamil Nadu’s political map beyond party lines and ideology.