Semnan Province is one of the 31 provinces of Iran. It is in the north of the country, and its center is Semnan. The province of Semnan covers an area of 96,816 square kilometers and stretches along the Alborz mountain range and borders to Dasht-e Kavir desert in its southern parts.
The province was put as part of Region 1 upon the division of the provinces into 5 regions solely for coordination and development purposes on June 22nd, 2014.
Counties of the province include Semnan, Aradan, Damghan, Shahrud, Mehdishahr, Meyami, Sorkheh, and Garmsar, and Shahmirzad county. In 1996, the province had a population of about 501,000, and in 2005 Semnan city (the capital of the province) had a population of 119,778, and the city of Shahroud, which accounts for being the largest city of this province, had a population of 231,831.