Diamond Harbour I
| Diamond Harbour I | |
|---|---|
| Location of Diamond Harbour I community development block in South 24 Parganas district | |
| Coordinates: 22°11′28″N 88°11′26″E / 22.1910091°N 88.1904741°E | |
| Country | India | 
| State | West Bengal | 
| Division | Presidency | 
| District | South 24 Parganas | 
| Subdivision | Diamond Harbour | 
| Headquarters | Diamond Harbour | 
| Government | |
| • Gram Panchayats | Basuldanga, Bolsiddhi Kalinagar, Derak, Harindanga, Kanpur Dhanaberia, Mashat, Netra, Parulia | 
| • Lok Sabha constituencies | Diamond Harbour, Mathurapur | 
| • Vidhan Sabha constituencies | Diamond Harbour, Magrahat Paschim | 
| Area | |
|  • Total | 68.43 km2 (26.42 sq mi) | 
| Population  (2011) | |
|  • Total | 156,166 | 
| • Density | 2,300/km2 (5,900/sq mi) | 
| • Urban | 21,006 | 
| Demographics | |
| • Literacy | 75.72 per cent | 
| • Sex ratio | 957 ♂/♀ | 
| Languages | |
| • Official | Bengali | 
| • Additional official | English | 
| Time zone | UTC+05:30 (IST) | 
| Website | s24pgs | 
Diamond Harbour I is a community development block that forms an administrative division in Diamond Harbour subdivision of South 24 Parganas district in the Indian state of West Bengal.