Part of the ancient kingdom of Harikela, 36 thin bull-and-triglyph silver coins were discovered inside a little clay pot in Hathazari's Jobra village in July 1980. All, except one, mentioned the kingdom of Harikela.[4] The Kingdom of Mrauk U built numerous mudforts in present-day Hathazari.[5]
In the fifteenth century, the Sultan of BengalShamsuddin Yusuf Shah had a mosque constructed in Dewannagar mouza which is now known as Faqir Mosque. During an expedition against the Arakanese in the early 16th century, Prince Nasiruddin Nasrat Shah passed through the area where he dug a reservoir and built a mosque which still stands today in Chikandandi Union. During the Mughal period, present-day Hathazari was a part of the Aurangabad Pargana. 12 hazaris were appointed to keep law and order and defend the pargana of Aurangabad. Due to Aurangabad being so far away from Murshidabad, the erstwhile capital of the Nawabs of Bengal, the hazaris neglected their duties. The Nawab's representative, Mahasingh, resorted to a ruse to undermine the power of the Hazaris and took the invitation to the Nawab's Kanchari in Sitakunda by cheating with the help of a trick. He was able to betray and capture eight of the twelve Hazaris and send them to Murshidabad. Two of the ten remaining Hazaris surrendered and were excused. The Nawab of Bengal imprisoned the eight Hazaris in iron cages and ordered them to be drowned in the Ganges.[6] One of the excused Hazaris, Bir Singh Hazari, established a haat bazaar in the area and so it came to be known as Hathazari (The haat/market of the Hazari).[7]
Hathazari Thana (an area controlled by a police station) was formed in 1929. The following year, it was the site of a battle between Bengali revolutionaries led by Surya Sen and Ananta Singh, and British Indian Army soldiers.[8] Four days earlier, the revolutionaries had carried out the Chittagong armoury raid. British forces caught up with them at Jalalabad Hill. In the ensuing fight over 80 soldiers and 12 revolutionaries were killed. Sen dispersed his men to neighbouring villages in small groups, allowing some to escape or delay capture.[9]
As of the 2011 Census of Bangladesh, Hathazari upazila had 81,292 households and a population of 431,748. 92,041 (21.32%) were under 10 years of age. Hathazari had an average literacy rate of 63.50%, compared to the national average of 51.8%, and a sex ratio of 1006 females per 1000 males. 60 (0.01%) of the population lived in urban areas.[12][13]
^"Bangladesh Postal Code". Dhaka: Bangladesh Postal Department under the Department of Posts and Telecommunications of the Ministry of Posts, Telecommunications and Information Technology of the People's Republic of Bangladesh. 20 October 2024.
^"NBR Reports"(PDF). With its impeccable Deobandi credentials, Hathazari madrasa ranks among the top ten madrasas in the subcontinent in terms of its academic standards and reputation.