24 Paraganas South is a district in the state of West Bengal.
24 Paraganas South is one of the districts of West Bengal with district headquarters located at Alipore. It has Kolkata on one side and the remote riverine villages in the Sundarbans on other side. According to the 2011 census South 24 Parganas district has a population of 8,153,176. It is the sixth most populous district in India. The district of South 24 Paraganas came into existence on 1st of March, 1986 after division of erstwhile Great 24 paraganas into two districts, the other being North 24 Paraganas. It then comprised of two sub divisions namely Alipore and Diamond Harbour and of 30 blocks. Presently there are five sub divisions namely Alipore, Baruipur, Canning, Diamond Harbour and Kakdwip and 29 blocks and 7 Municipalities. The district has 5 parliament constituencies. The district is divided into 32 assembly constituencies. In 2006 the Ministry of Panchayati Raj included South 24 Parganas in the India's 250 most backward districts.
The Sundarbans, the largest mangrove forests on earth, are spread over thirteen of the twenty-nine development blocks in the district. In 1984 South 24 Parganas district became home to Sundarbans National Park, which has an area of 1,330 sq km. It is also home to four wildlife sanctuaries namely Haliday Island, Lothian Island, Narendrapur, and Sajnekhali.