Population: 65,619,636 (July 2000 est.)

Age structure:
0-14 years: 34% (male 11,542,446; female 11,035,705)
15-64 years: 61% (male 20,151,083; female 19,879,432)
65 years and over: 5% (male 1,592,753; female 1,418,217) (2000 est.)

Population growth rate: 0.83% (2000 est.)

Birth rate: 18.29 births/1,000 population (2000 est.)

Death rate: 5.45 deaths/1,000 population (2000 est.)

Net migration rate: -4.55 migrant(s)/1,000 population (2000 est.)

Sex ratio:
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 1.12 male(s)/female
total population: 1.03 male(s)/female (2000 est.)

Infant mortality rate: 30.02 deaths/1,000 live births (2000 est.)

Life expectancy at birth:
total population: 69.66 years
male: 68.34 years
female: 71.05 years (2000 est.)

Total fertility rate: 2.2 children born/woman (2000 est.)

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: Shi'a Muslim 89%, Sunni Muslim 10%, Zoroastrian, Jewish, Christian, and Baha'i 1%

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: 72.1%
male: 78.4%
female: 65.8% (1994 est.)