Population:
76,923,300 (July 2010 est.)
country comparison to the world: 18
[see also: Population country ranks ]

Age structure:
0-14 years: 21.7% (male 7,394,841/female 7,022,076)
[see also: Age structure - 0-14 years country ranks ]
15-64 years: 72.9% (male 24,501,544/female 23,914,172)
[see also: Age structure - 15-64 years country ranks ]
65 years and over: 5.4% (male 1,725,828/female 1,870,823) (2010 est.)
[see also: Age structure - 65 years and over country ranks ]

Median age:
total: 26.3 years
[see also: Median age - total country ranks ]
male: 26 years
[see also: Median age - male country ranks ]
female: 26.5 years (2010 est.)
[see also: Median age - female country ranks ]

Population growth rate:
1.253% (2010 est.)
country comparison to the world: 99
[see also: Population growth rate country ranks ]

Birth rate:
18.52 births/1,000 population (2010 est.)
country comparison to the world: 105
[see also: Birth rate country ranks ]

Death rate:
5.94 deaths/1,000 population (July 2010 est.)
country comparison to the world: 168
[see also: Death rate country ranks ]

Net migration rate:
-0.04 migrant(s)/1,000 population (2010 est.)
country comparison to the world: 122
[see also: Net migration rate country ranks ]

Urbanization:
urban population: 68% of total population (2008)
[see also: Urbanization - urban population country ranks ]
rate of urbanization: 2.1% annual rate of change (2005-10 est.)
[see also: Urbanization - rate of urbanization country ranks ]

Sex ratio:
at birth: 1.05 male(s)/female
[see also: Sex ratio - at birth country ranks ]
under 15 years: 1.05 male(s)/female
[see also: Sex ratio - under 15 years country ranks ]
15-64 years: 1.02 male(s)/female
[see also: Sex ratio - 15-64 years country ranks ]
65 years and over: 0.91 male(s)/female
[see also: Sex ratio - 65 years and over country ranks ]
total population: 1.02 male(s)/female (2010 est.)
[see also: Sex ratio - total population country ranks ]

Infant mortality rate:
total: 43.45 deaths/1,000 live births
country comparison to the world: 62
[see also: Infant mortality rate - total country ranks ]
male: 43.93 deaths/1,000 live births
[see also: Infant mortality rate - male country ranks ]
female: 42.95 deaths/1,000 live births (2010 est.)
[see also: Infant mortality rate - female country ranks ]

Life expectancy at birth:
total population: 69.77 years
country comparison to the world: 147
[see also: Life expectancy at birth - total population country ranks ]
male: 68.32 years
[see also: Life expectancy at birth - male country ranks ]
female: 71.29 years (2010 est.)
[see also: Life expectancy at birth - female country ranks ]

Total fertility rate:
1.89 children born/woman (2010 est.)
country comparison to the world: 148
[see also: Total fertility rate country ranks ]

HIV/AIDS - adult prevalence rate:
0.2% (2007 est.)
country comparison to the world: 102
[see also: HIV/AIDS - adult prevalence rate country ranks ]

HIV/AIDS - people living with HIV/AIDS:
86,000 (2007 est.)
country comparison to the world: 49
[see also: HIV/AIDS - people living with HIV/AIDS country ranks ]

HIV/AIDS - deaths:
4,300 (2007 est.)
country comparison to the world: 47
[see also: HIV/AIDS - deaths country ranks ]

Major infectious diseases:
degree of risk: intermediate
food or waterborne diseases: bacterial diarrhea
vectorborne diseases: Crimean Congo hemorrhagic fever and malaria
note: highly pathogenic H5N1 avian influenza has been identified in this country; it poses a negligible risk with extremely rare cases possible among US citizens who have close contact with birds (2009)

Nationality:
noun: Iranian(s)
adjective: Iranian

Ethnic groups:
Persian 51%, Azeri 24%, Gilaki and Mazandarani 8%, Kurd 7%, Arab 3%, Lur 2%, Baloch 2%, Turkmen 2%, other 1%

Religions:
Muslim 98% (Shia 89%, Sunni 9%), other (includes Zoroastrian, Jewish, Christian, and Baha'i) 2%

Languages:
Persian and Persian dialects 58%, Turkic and Turkic dialects 26%, Kurdish 9%, Luri 2%, Balochi 1%, Arabic 1%, Turkish 1%, other 2%

Literacy:
definition: age 15 and over can read and write
total population: 77%
[see also: Literacy - total population country ranks ]
male: 83.5%
[see also: Literacy - male country ranks ]
female: 70.4% (2002 est.)
[see also: Literacy - female country ranks ]

School life expectancy (primary to tertiary education):
total: 14 years
male: 13 years
female: 15 years (2008)

Education expenditures:
4.8% of GDP (2008)
country comparison to the world: 80
[see also: Education expenditures country ranks ]