Jhenaidah District is a district in southwestern Bangladesh. Part of the Khulna Division, the district has an area of 1,964.77 km². It is bordereā¦Jhenaidah District is a district in southwestern Bangladesh. Part of the Khulna Division, the district has an area of 1,964.77 km². It is bordered by Kushtia District to the north, Jessore District and West Bengal to the south, Rajbari District and Magura District to the east, and Chuadanga District and West Bengal to the west. The largest city and headquarters of this district is Jhenaidah. At the beginning of the British rule, Jhenaidah was a police outpost and was turned into a thana in 1793. The Jhenaidah sub-division was established in 1862. It became a district in 1984.