Narsingdi is bordered by Kishoreganj in the north and north-east, Brahmanbaria in the east and south-east, Narayanganj in the south and south-west and Gazipur in the west.

In the early medieval period, the region fell under the control of the Palas and later Senas, before being conquered like the rest of the Dhaka area by the Muslims, and became part of a province of the Delhi Sultanate administered from nearby Sonargaon.

Eventually the armour-bearer Fakhruddin Mubarak Shah formed a short-lived sultanate centred at Sonargaon which included Narsingdi, but he was soon defeated by the Ilyas Shahi dynasty.

However, in truth the region remained under the control of the zamindar Isa Khan, who contested Mughal rule in East Bengal.

The Meghna, the Shitalakshya, the old Brahmaputra, Arial Kha, Haridhoa, and Paharea are some of the main rivers that flow through this district.

Narsingdi District had a literacy rate (age 7 and over) of 74.81%, compared to the national average of 74.80%, and a sex ratio of 1041 females per 1000 males.