| Official Name: | Sirajganj Sadar |
| Native Name: | সিরাজগঞ্জ সদর |
| Settlement Type: | Upazila |
| Coordinates: | 24°N 89°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Subdivision Name1: | Rajshahi |
| Subdivision Name2: | Sirajganj |
| Seat Type: | Headquarters |
| Seat: | Sirajganj |
| Area Total Km2: | 320.15 |
| Population Total: | 555155 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 6700 |
| Website: | Official map of Sirajganj Sadar |
| Timezone: | BST |
| Utc Offset: | +6 |
Sirajganj Sadar (Bengali: সিরাজগঞ্জ সদর) is an upazila, or sub-district of Sirajganj District, located in Rajshahi Division, Bangladesh.[1]
Sirajganj Sadar is located at 24.4583°N 89.7°W. It is bounded by Kazipur upazila on the north, Kamarkhanda and Belkuchi upazilas on the south, Sarishabari, Kalihati and Bhuapur upazilas on the east, Kamarkhanda, Raiganj and Dhunat upazilas on the west.
According to the 2011 Bangladesh census, Sirajganj Sadar Upazila had 125,485 households and a population of 555,155. 130,591 (23.52%) were under 10 years of age. Sirajganj Sadar had a literacy rate (age 7 and over) of 47.96%, compared to the national average of 51.8%, and a sex ratio of 989 females per 1000 males. 167,200 (30.12%) lived in urban areas.[2] [3]
As of the 1991 Bangladesh census, Sirajganj Sadar has a population of 389,160. Males constitute are 51.54% of the population, and females 48.46%. This upazila's eighteen up population is 195,911. Sirajganj Sadar has an average literacy rate of 29.8% (7+ years), and the national average of 32.4% literate.[4]
Sirajganj Sadar Thana was formed under Mymensingh district in 1772 and it was turned into an upazila in 1984.[5]
Sirajganj Sadar Upazila is divided into Sirajganj Municipality and ten union parishads: Bagbati, Bohuli, Kaliahoripur, Khokshabari, Kawakhola, Mechhra, Ratankandi, Shialkol, Chhongachha, and Soydabad. The union parishads are subdivided into 187 mauzas and 294 villages.
Sirajganj Municipality is subdivided into 15 wards and 50 mahallas.
Sirajganj Sadaar upazila boasts numerous educational institutions including:
Shaheed M. Munsur Ali Medical College (2014), North Bengal Medical college (2001), Sirajganj Government College (1940), Islamia Government College (1921), Rashiddozzoha Government Women's College(1966), Bhashani Degree College(1994), Rajob Ali Memorial Science College(1999), Abdullah al Mahmud Degree college(1987), Sirajganj Govt. MATS, Sheikh Hasina Nursing College, Sirajganj Government Technical College(1966), Sirajganj Polytechnic Institute(2000), B.L Government Boys High School(1869), Bagbati High School(1866), Jnanadainy High School(1882), Victoria High School(1898), Char Songachha Islamia Fazil Madrasah (1919), Bhatpiary J.R.S High School(1933), Saleha Ishaque Government Girls High School(1937), Mesra High School(1948), Gotia High school(1982), Rupsha High School(1989), Suchona Kinder Garten High School-Rupsha(2003), Sabuj Kanan High School (1980), Siajganj Collectorate School & College(2003), Jewels oxford international school(2002), Haji Ali Ahmad High School(1947), Jahanara High School(1969), Gowri-Urban High School(1968), S.B Railway Colony High School & College(1964), PDB High school(1973), Police Line School & College(2011), Shaheed Model School(2012), Goyla Model Govt. Primary School(1845).
