The population of Tangail zila is about 4 million and its area is 3,414.28 square kilometres (1,318.26 sq mi).

The main rivers that cross the Tangail district are the Jamuna, Dhaleshwari, Jhenai, Bangshi, Louhajang, Langulia, Elongjani, Jugni, Pouli, Fotikjani and the Turag.

Tangail District had a literacy rate (age 7 and over) of 69.75%, compared to the national average of 74.80%, and a sex ratio of 1075 females per 1000 males.

Tangail district is flanked on the west by the Jamuna River, which is over 4 miles wide during the rainy season.

The Dhaleswari, first an old channel of the Ganges and then of the Brahmaputra, cuts across the southwestern comer of the district on its powerful sweep to join the Meghna near Narayanganj.

The river Bangshi flows almost down the middle of the district, branching out from the old Brahmaputra to the north from near Jamalpur.

It flows past the district headquarters of Tangail and is almost dead at present (in moribund condition).

Other rivers are Khiru, Nanglai Nadi, Atai, Elengjani, Fatikjani, Bairan and Jhinai.

The old Brahmaputra's most important offshoot is the Jhinai; striking off near Jamalpur it rejoins the Jamuna north of Sarishabari, while another branch flows past Gopalpur.

These two schools were patronized and endowed by Rani Bindubasini Roy Chowdhurany and were named after her.

In 1926, the Government Saadat College was established by Wazed Ali Khan Panni, a zamindar and educationalist of Tangail.

The then president of Pakistan Field Marshal Ayub Khan took initiatives to establish this cadet college.

The urban growth rate of Tangail District is increasing as it is close to the capital of Bangladesh, Dhaka.

Tangail municipality is planned to be converted into a City Corporation in next couple of years alongside 11 other old district headquarters of Bangladesh.

Its main agricultural products are paddy, potato, jute, sugarcane, sesame, linseed, wheat, mustard seed and pulse.

Other sectors, such as fisheries (446), dairies (189), industries, weaving and poultry farms (538) are developing in the Tangail district.

Tangail Saree a handloom saree made of cotton and silk thread having hand-worked butte design, all-over flowery design, or contemporary art motif is appreciated, bought, and used by women and girls of Bangladeshi and Indian origin all over the world.

Large numbers of sarees are sold on the occasion of Eid, Puja, Pahela Boishakh and wedding season between November and February.