Sijua is located at 23.78°N 86.32°E / 23.78; 86.32. It has an average elevation of 181 metres (593 feet).
As of 2001 India census, Sijua had a population of 29,797. Males constitute 54% of the population and females 46%. Sijua has an average literacy rate of 62%, higher than the national average of 59.5%: male literacy is 71%, and female literacy is 50%. In Sijua, 14% of the population is under 6 years of age.
Tata Steel and BCCL are the major coal companies in Sijua.
The Sijua group of mines under BCCL is composed of: Basdeopur colliery (underground), Kankanee colliery (UG and open cast), Loyabad colliery (UG) (mostly non-functional), Mudidih colliery (UG and OC), Nichitpur Colliery (OC), Sendra Bansjora colliery (UG and OC) and Tetulmari colliery (UG and OC).
Tata Steel leased six coal mines with metallurgical coal in Jharia coalfield between 1910 and 1918, These are grouped in two locations – Sijua and Jamadoba. The Bhelatand colliery of the Sijua Group was then acquired. Subsequently in 1918, Tata Steel acquired Malkera and Sijua as well as Jamadoba, Digwadih and 6&7 Pits Collieries of the Jamadoba Group.In 1993 Tata Steel set up a 1 million tonnes per annum coal washery at Bhelatand.
Coal Mining is the largest source of employment in the area. A part of the residing population is also employed in the Indian Railways, courtesy the neighbouring railway stations.
Sijua is situated at a distance of 12 km from Dhanbad (Railway Track Distance), which is a major city in the adjoining area. It is also situated 4 km from Katras, the local centre for trade and commerce. It is well connected by railways as well as by road. Being is a unique location, Sijua is lucky enough to have railway access along three different railway lines, the corresponding stations being Sijua (under the Dhanbad-Chandrapura line under the Dhanbad Railway Division, East Central Railway), Tetulmari (under the CIC section of Dhanbad Railway Division, East Central Railway)and Tata-Sijua(under the Adra railway division, South Eastern Railway). Sijua is also connected to Dhanbad via road, courtesy of the JNURM buses and auto-rickshaws plying along the Dhanbad-Katras route.
De Nobili School, Sijua is one of the major schools (ICSE) which caters to the higher secondary level.
Tata D A V School, Sijua is another higher secondary school. It is run by TATA Steel and D A V organizing committee. It is CBSE based. It is considered as the excellent school of Sijua. It has one library