Divisions of Bangladesh in the context of "Bangladesh-India border"

Dhaka Division (Bengali: ঢাকা বিভাগ, romanized: Ḍhaka Bibhag) is an administrative division of Bangladesh. Dhaka serves as the capital city of Dhaka Division, the Dhaka District and Bangladesh. The division remains a population magnet, and covers an area of 20,508.8 km with a population in excess of 44 million, it is one of the fastest growing populous administrative divisions of the world, growing at a rate of 1.94% since prior count, compared with the national average of 1.22%. However, national figures may include data skewing expatriation of male labor force as gender ratio is skewed towards females.

Dhaka Division borders every other division in the country except Rangpur Division. It is bounded by Mymensingh Division to the north, Barisal Division to the south, Chittagong Division to the east and south-east, Sylhet Division to the north-east, and Rajshahi Division to the west and Khulna Divisions to the south-west.

Mymensingh Division (Bengali: ময়মনসিংহ বিভাগ; Bengali pronunciation: [mɔ͡ɛmonʃiŋ bibʰag]) is one of the eight administrative divisions of Bangladesh. It has an area of 10,485 square kilometres (4,048 sq mi) and a population of 12,225,498 as of the 2022 census. It was formed in 2015 from districts previously composing the northern part of Dhaka Division. Its headquarters are in Mymensingh city in Mymensingh District. Mymensingh has four districts which it governs, Mymensingh District, Jamalpur District, Netrokona District, and Sherpur District.

Khulna Division (Bengali: খুলনা বিভাগ) is the second largest of the eight divisions of Bangladesh. It has an area of 22,285 km (8,604 sq mi) and a population of 17,416,645 at the 2022 Bangladesh census (preliminary returns). Its headquarters and largest city is Khulna city in Khulna District.

Rajshahi Division (Bengali: রাজশাহী বিভাগ) is one of the eight first-level administrative divisions of Bangladesh. It has an area of 18,174.4 square kilometres (7,017.2 sq mi) and a population at the 2022 Census of 20,353,119. Rajshahi Division consists of 8 districts, 70 upazilas (the next lower administrative tier) and 1,092 unions (the lowest administrative tier).

The region has historically been dominated by various feudal Rajas, Maharajas and Zamindars. Formerly comprising 16 districts, a new division (Rangpur Division) was formed with the 8 northern districts of the old Rajshahi Division from early 2010.

Rangpur Division (/rʌŋˈpʊər/; Bengali: রংপুর বিভাগ, romanized: Rongpur Bivag;pronounced [rɔŋpuɾ bibʱag] ) is a first-level administrative division of Bangladesh. It covers the northernmost part of the country with a population of about 18 million inhabitants within an area of 16,184.99 km (6,249.06 sq mi). Rangpur Division shares borders with the Rajshahi and Mymensingh divisions. It is also bordered by the Indian states of West Bengal, Assam and Meghalaya and separated from Bhutan and Nepal by the Siliguri Corridor, and from China by the Indian state of Sikkim. Rangpur City is the administrative headquarter and the largest city. Rangpur Division includes the Teesta and Jamuna rivers. Rangpur division with 16,185 sq km area or 10.9% of Bangladesh's total area which contributes significantly to economy of Bangladesh especially in rice, jute, agriculture, food security and transport, isolated from the mainland Bagladesh by Karatoya River, forms one of Bangladesh's chicken's neck vulnerability area.

The Rangpur division consists of eight districts. There are 58 upazilas or subdistricts under these eight districts. The major cities of Rangpur Division are Rangpur, Dinajpur, and Saidpur.

Sylhet Division (Sylheti: ꠍꠤꠟꠐ ꠛꠤꠜꠣꠉ, pronounced [sílɔʈ bibáɡ]; Bengali: সিলেট বিভাগ, pronounced [sileʈ bibʱaɡ] ) is a northeastern division of Bangladesh, renowned for its lush tea gardens, rolling hills and vibrant cultural heritage. Covering an area of approximately 12,298 square kilometres, it is bordered by the Indian states of Meghalaya, Assam and Tripura to the north, east and south respectively, while domestically it adjoins Chattogram to the southwest and Dhaka and Mymensingh to the west.

Prior to Partition in 1947, it included Karimganj subdivision (presently in Barak Valley, Assam, India). However, Karimganj (including the thanas of Badarpur, Patharkandi and Ratabari) was inexplicably severed from Sylhet by the Radcliffe Boundary Commission. According to Niharranjan Ray, it was partly due to a plea from a delegation led by Abdul Matlib Mazumdar.

Chittagong Division (Bengali: চট্টগ্রাম বিভাগ), officially Chattogram Division, is geographically the largest of the eight administrative Divisions of Bangladesh. It covers the southeasternmost areas of the country, with a total area of 34,529.97 km (13,332.10 sq mi) and a population according to the 2022 census of 33,202,326, which made it the second most populous division of Bangladesh and the 45th most populous subnational entity in the world — more populous than all but 43 other countries. However, this changed in 2024 with the Division being split in two by the creation of a separate Cumilla Division, and the reduced administrative division includes mainland Chittagong District, neighbouring districts and the Chittagong Hill Tracts.

Chittagong Division is home to Cox's Bazar, the longest natural sea beach in the world; as well as St. Martin's Island, Bangladesh's sole coral reef.

The divisions of Bangladesh are further divided into districts or zilas (Bengali: জেলা). The headquarters of a district is called the district seat (Bengali: জেলা সদর, romanized: zila sadar). There are 64 districts in Bangladesh. The districts are further subdivided into 495 subdistricts or upazilas.