Walaupun tinggal berasingan kerana Perjanjian Gulistan (1813) dan Turkmenchay (1828), di mana Iran kehilangan wilayah utaranya kepada Rusia, Azerbaijan adalah satu kumpulan etnik.[28] Walau bagaimanapun, terdapat perbezaan antara Azerbaijan di utara dan selatan kerana perbezaan dalam evolusi sosial. Bahasa Azeri masih boleh menyatukan orang Azerbaijan di utara dan selatan.
Rujukan
^"Peoples of Iran" in Looklex Encyclopedia of the Orient. Retrieved on 22 January 2009.
^"Iran: People", CIA: The World Factbook: 24% of Iran's total population. Retrieved on 22 January 2009.
^"Iran"Diarkibkan 2007-03-11 di Wayback Machine, Amnesty International report on Iran and Azerbaijanis . Retrieved 30 July 2006.
^"Borders and Brethren: Iran and the Challenge of Azerbaijani Identity" in The Azerbaijani Population by Brenda Shaffer, pp. 221–225. The MIT Press (2003), ISBN 0-262-19477-5.
^Estonia: Population Census of 2000: select "Azerbaijani" under "Ethnic nationality". NB Of these, only 162 held Estonian citizenship as of 31 March 2000.
^2006 Australian Census. NB According to the 2006 census, 290 people living in Australia identified themselves as of Azeri ancestry, although the Australian-Azeri community is estimated to be larger. . Retrieved 1 April 2008.
^StatBank Denmark (2008). NB This number includes Danish citizens who declare Azerbaijan as their country of origin. It does not account for ethnic Azeris from Iran. . Retrieved 25 April 2008.
^"Azerbaijani, North —". Rosettaproject.org. Diarkibkan daripada yang asal pada 2008-04-04. Dicapai pada 2009-03-03. Unknown parameter |dead-url= ignored (bantuan)