Chittagong district.[6]
1772
Sylhet District.[7]
Rangpur District.[8]
Rajshahi District.[9]
1781
Jessore District.[10]
Dhaka District.
1786
Dinajpur District.[11]
1787
Mymensingh District.[12]
1790
Comilla District.[13]
1797
Bakerganj District (now Barisal District).[14]
1815
Faridpur District.[15]
1821
Noakhali District.[16]
Bogra district.[17]
1832
Pabna District.[18]
1860
Hill Tracts district is split from Chittagong district.[6]
1882
Khulna District is split from Jessore district .[19]
1947
Kushtia District is established Because of the Partition of Bengal in 1947 before that it is a part of Nadia District.[20]
1969
Tangail District is split from Mymensingh district.[12]
Patuakhali district is split from Barisal district.[21]
1971
Dhaka Division: Dhaka district, Faridpur district, Mymensingh district, Tangail district
Chittagong Division: Hill Tracts district, Chittagong district, Comilla district, Noakhali district, Sylhet district.
Rajshahi Division: Bogra district, Dinajpur district, Rajshahi district, Rangpur district, Pabna district.
Khulna Division: Barisal district, Jessore district, Khulna district, Kushtia district, Patuakhali district
1984
22 February
Magura district was split from Jessore district.
Brahmanbaria and Chandpur districts were split from Comilla district.[22]
Sirajganj district was split from Pabna district.[23]
Sherpur district was split from Jamalpur district.
Netrokona and Kishoreganj districts were split from Mymensingh district.[12]
Lakshmipur and Feni districts were split from Noakhali district.[24][25]
Sunamganj, Habiganj and Maulvibazar districts were split from Sylhet district.[7]
Thakurgaon and Panchagarh districts were split from Dinajpur district.[11]
1 March
Jhenaidah and Narail split from Jessore district.
Cox's Bazar district was split from Chittagong district.[26]
Satkhira and Bagerhat districts were split from Khulna District.
Meherpur and Chuadanga districts were split from Kustia District.
Prirojpur and Jhalokati District were spilt from Barisal district.
Bhola and Barguna District were spilt from Patuakhali district