In 2009, the number of households stood at 15.3 million (4.8 person/household). According to the Central Bank of Iran in 2012, in 22.5 per cent of Iranian families, all family members were unemployed. Families earn some 11.4 million rials (around $400) per month on the average (2012).
According to the OECD/World Bank statistics population growth in Iran from 1990 to 2008 was 17.6 million and 32%. The literacy rate was 80% in 2007.
Languages and ethnic groups
The largest linguistic group comprises speakers of Iranian languages, like modern Persian, Kurdish, Gilaki, Mazandarani, Luri, and Balochi.
Speakers of Turkic languages, such as the Azeri, Turkmen, and the Qashqai peoples, comprise a substantial minority.
The remainder are primarily speakers of Semitic languages such as Arabic and Assyrian.
There are small groups using other Indo-European languages such as Pashtun and Armenian; the isolate Dravidian language Brahui in the south-east; and Georgian (a member of the Kartvelian language family), spoken only by those Iranian Georgians that live in Fereydan and Fereydunshahr.
The CIA World Factbook (which is based on 2013 statistics) gives the following numbers for the languages spoken in Iran today: Persian, Luri, Gilaki and Mazandarani 66%; Azeri and other Turkic languages 18%; Kurdish 10%; Arabic 2%; Baloch 2%; others 1%.
Other sources, such as the Library of Congress, and the Encyclopedia of Islam (Leiden) give Iran's ethnic groups as following: Persians 65%, Azeris 16%, Kurds 7%, Lurs 6%, Arabs 2%, Baloch 2%, Turkmens 1%, Turkic tribal groups (e.g. Qashqai) 1%, and non-Persian, non-Turkic groups (e.g. Pashtuns, Armenians, Assyrians, and Georgians) less than 1%. For sources prior to 2000, see Languages and ethnicities in Iran.