Surajgarh is a city and a municipality in the Jhunjhunun district of the Indian state Rajasthan.
The old name of surajgarh used to be ADICHA.surjgarh was built by Maharaja Surajmal Sing, a Jatt ruler of Bissau . Who's fort has now been converted into a heritage hotel. There are many old hindu temples in Surajgarh. the town is divided in mainly two parts first one is surajgarh bazar(old surajgarh) and surajgarh mandi. one old temple on chirawa by pass called bhairu ke bagiche and one old talab called shivalya near ghardu village also part of surajgarh. The other notable landmark is the Dalmia house/ Shekhawati resort which was constructed in year 1947 by the very prominent citizen of Surajgarh Lt. Shri Murli Dhar Dalmia. The house is now a guest house.
Surajgarh is located at 28°19′N 75°44′E / 28.32°N 75.73°E / 28.32; 75.73. It has an average elevation of 280 metres (918 feet).
In the 2001 Indian census, Surajgarh had a population of 18,857; of this 53% were male and 47% females. Surajgarh has an average literacy rate of 65%, higher than the national average of 59.5%: male literacy is 74%, and female literacy is 55%. In Surajgarh, 16% of the population is under 6 years of age.
Surajgarh Assembly constituency is one of constituencies of Rajasthan Legislative Assembly in the Jhunjhunu (Lok Sabha constituency).
Surajgarh Constituency covers all voters from Buhana tehsil and parts of Chirawa tehsil, which include Surajgarh Municipal Board, Baloda, Berla, Bhaothari, Dheengariya, Jakhod, Kakora, Kidwana, Lakhoo, Lotiya and Mahpalwas of ILRC Surajgarh.