Chennai is a diverse, cosmopolitan city with a deep-rooted cultural identity. Data below is based on regional estimates following the 2011 Census for the urban agglomeration.
| Demographic Category | Details | | :--- | :--- | | **Population** | ~8.6 Million (City), ~11.5 Million (Urban Agglomeration) | | **Primary Language** | Tamil (dominant) | | **Other Languages** | English, Telugu, Hindi, Malayalam, Urdu | | **Religion - Hindu** | ~80.7% | | **Religion - Muslim** | ~9.4% | | **Religion - Christian** | ~7.7% | | **Religion - Others** | ~2.2% (Jain, Sikh, Buddhist, etc.) | | **Workforce** | Heavy concentration in IT, automotive, healthcare, and manufacturing |
