Mikoa na wilaya za Uajemi ni vitengo vya utawala wa nchi hiyo. Uajemi imegawiwa kwa mikoa 30 inayoitwa kwa Kifarsi ostān ( استان wingil استان‌ها ostānhā). Kila mmoja huwa na makao makuu yake ambayo kwa kawaida yako kwenye mji mkubwa wa mkoa na kuitwa مرکز markaz au kitovu cha mkoa. Mkuu wa mkoa anaitwa ostandar anateuliwa na waziri wa mambo ya ndani kwa kibali cha halmashauri ya mawaziri. Mikoa hugawiwa kwa wilaya zinazoitwa "shahrestan". Statistical Centre, Government of Iran. "General Characteristics of Ostans according to their administrative divisions at the end of 1383 (2005 CE)". Iliwekwa mnamo 2006-04-30. Statistical Centre, Government of Iran. "Population estimation by urban and rural areas, 2005". Iliwekwa mnamo 2006-04-30. Until 1993, Ardabil was part of East Azarbaijan province. Until 1979, the city was known as Rezaiyeh. Originally part of Fars province. Until 1977, the province was known as Khalij-e Fars (Persian Gulf). Originally part of Isfahan province. On 1997-05-31, the shahrestans of Aliabad, Gonbad-e-kavus, Gorgan, Kordkuy, Minudasht, na Torkaman were separated from Mazandaran province to form Golestan province.