Zanjan Province
Zanjan Province is one of the 31 provinces of Iran. Located in Iranian Azerbaijan with a largely Azerbaijani population, it is part of Iran's Regions 3. Its capital is Zanjan city. Zanjan province, with an area of 36,400 km2, has a mostly rural population of 1,015,734. The province lies 330 km northwest of Tehran, connected to it by a freeway. Zanjan is known to be the happiest province in Iran.