Kishoreganj District () is a district in Dhaka Division, Bangladesh. The establishment of the Kishorganj began with 2495.07 km<sup>2</sup> of land requisition from Mymensingh district to form Kishoreganj District. Earlier it was a mahakuma (sub-division) under Mymensingh district. Kishorganj consists of Ten municipalities, 13 upazilas, 105 union parishads, 39 wards, 145 mahallas, 946 mouzas, and 1775 villages.
History
The history of Kishoreganj dates from ancient times. The village of Egarosindur in Pakundia Upazila has evidence of trade with distant foreign countries dating back at least 2500 years. Historically, the region of Kishoreganj has been seen as forming the southern boundary of Kamarupa. It was part of the Pala and Sena empires, and after their fall, it was mainly administered by a large number of petty Koch and Barman chieftains.
These chieftains were nominally subject to the Bengal Sultans, but were never fully conquered. However, eventually these chieftains were conquered by the Mughals, with Egarosindur being conquered in 1538. In 1580, Isa Khan defeated the Koch chieftain of Jangalbari and took over the entirety of Kishoreganj in his domain. From this fort, he resisted Mughal domination of Bengal. The region is composed of haors, which flood during the monsoon to cover the entire basin. Parts of the region lie underwater for the majority of the year.
Rivers
Kishoreganj district has several rivers. The most important of these rivers is the Meghna, which forms from the merging of the Surma and Kushiyara rivers. The Meghna forms near the village of Dilalpur in Bajitpur Upazila at the border between Kishoreganj and Brahmanbaria districts, leaving the district at the town of Bhairab Bazar where it is joined by the Old Brahmaputra.
According to the 2022 Census of Bangladesh, Kishoreganj District had 760,952 households and a population of 3,267,626 with an average 4.25 people per household. Among the population, 520,051 (22.14%) inhabitants were under 10 years of age. The population density was 1,215 people per km<sup>2</sup>. Kishoreganj District had a literacy rate (age 7 and over) of 67.60%, compared to the national average of 74.80%, and a sex ratio of 1077 females per 1000 males. Approximately, 27.41% of the population lived in urban areas. The ethnic population was 1,022.