Thanks to Sorin Cosoveanu for 2016 census data (source ).
On 2015-11-27, ISO announced an update that changes the spelling of five province names. It just uses a different method of transliteration from Arabic script.
"Geopolitical Entities, Names, and Codes, Edition 2" (GENC), a U.S. standard that's supposed to correspond to ISO
3166-2, was issued on 2014-03-31. It gives Alborz the code
IR-32. Subsequently, on 2014-10-30, ISO
issued that same code for Alborz.
In 2012, the Majlis considered a plan to split a Persian Gulf province from Hormozgan.
Sorin Cosoveanu found the results of the 2011 census at http://www.amar.org.ir/, the website of the Statistical Center of Iran. The populations and areas in the main table below are from his spreadsheet.
Update 3 to Geopolitical Entities and Codes, the successor to FIPS PUB 10-4, was issued on 2011-02-28. It changes the transliteration of two province names.
Update 1 to the U.S. standard "Geopolitical Entities and Codes", dated 2010-08-20, adds a code for the new Alborz province. I also revised the list of internet second-level domain codes to bring it up to date. When first letter of the code represents Kh, it is now an x; those codes used to begin with k.
A correspondent who identifies him- or herself as a resident of Kermanshah(an) province tells me that its correct name is Kermanshahan. I did a search to see what documentation I could find on the subject. I found 57 sources, dated from 1922 to 2006. Just about all sources are consistent with the supposition that both the capital city and the province were named Bakhtaran during a period from 1986 (or earlier) to around 1995. Also, the capital seems to have been called Kermanshah consistently, aside from that lacuna. As for the province, all sources prior to 1969 called it Kermanshah. From 1969 to 1985, most sources (12 out of 17) called it Kermanshahan. The other five were probably just copying the name from their own earlier editions. From 1996 to 2001, I find a mixture, with three occurrences of Kermanshah, three of Kermanshahan, and three of Bakhtaran. Since 2001, five sources are unanimously agreed on Kermanshah. As mentioned below, both the ISO and GEC standards have explicitly stated that the name was changed from Kermanshahan to Kermanshah, no later than 2001. Today (2007-08-10), a Google search prefers "Kermanshah province" to "Kermanshahan province" by a 28.5:1 ratio. Wikipedias in a dozen different languages spell it without the "-an" ending. Some of them give its Persian name in Arabic script, which transliterates to "Kermanshah". I'm still open to further evidence, but for the present I have to conclude that its English name is Kermanshah.
Khorasan was split into three provinces on 2004-09-29. ISO 3166-2 Newsletter I-8, published on 2007-04-17, has ISO codes for the new provinces of Iran. FIPS Publication Change Notice No. 10, affecting FIPS PUB 10-4, was issued on 2006-03-23. It assigns new GEC codes to these new provinces, and changes the code for Yazd province due to its territorial change.
ISO 3166-2 Newsletter Number I-2 was published on 2002-05-21. It adds the new provinces of Golestan and Qazvin. It also makes spelling changes similar to those in FIPS Change Notice 6 (next paragraph). I've added the new ISO codes for Golestan and Qazvin to the table below.
Change Notice 6 to FIPS PUB 10-4 was published on 2001-01-28. It shows new spellings for the names of two Iranian provinces. Kermanshahan is supposed to be changed to Kermanshah, and Kohkiluyeh va Buyer Ahmadi is now Kohgiluyeh va Buyer Ahmad.
Change notice 5 to FIPS PUB 10-4 was issued on 2000-08-10. It showed three new provinces in Iran: Golestan, Qazvin, and Qom. These provinces had already been reported on this page and elsewhere.
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Iran began the century as an absolute monarchy. It has had major changes in government since then, but its borders have undergone only minor adjustments. The names Persia and Iran had both been used for the area since antiquity. Although Iran was a more correct name for the modern kingdom, westerners used Persia preferentially until 1935. Then the Iranian government requested a change, and standard usage in the West shifted to Iran.
from Avestian Ayryanem: land of the Aryans
Spelling note: Persian (sometimes called Farsi) is spelled with a modified Arabic alphabet. Transliteration into the Roman alphabet can be done by various systems. As a result, there are many alternate spellings for these names. In particular, the letters o and u are often switched. So are a, e, and i. Some schemes use x instead of kh. Many schemes use diacritical marks for long vowels or aspirated consonants, but they seem to be inconsistent, so I haven't attempted to use diacriticals.
Iran is divided into 31 ostanha (sing. ostan: provinces).
|Chahar Mahall and Bakhtiari||947,763||895,263||16,328||6,304||Shahr-e-Kord|
|Kohgiluyeh and Buyer Ahmad||713,052||658,629||15,504||5,986||Yasuj|
|Sistan and Baluchestan||2,775,014||2,534,327||181,785||70,188||Zahedan|
Iran uses five-digit postal codes.
See the Counties of Iran page.
The provinces are subdivided into shahrestan (counties), which are in turn subdivided into bakhsh (districts).
Hormozgan includes most of the larger islands off Iran's south coast: Qeshm, Lavan, Kish, Larak, Hormoz, Hengam, Forur, Sirri. It also includes Abu Musa, an island which is administered jointly by Iran and the United Arab Emirates.
The UN LOCODE page for Iran lists locations in the country, some of them with their latitudes and longitudes, some with their ISO 3166-2 codes for their subdivisions. This information can be put together to approximate the territorial extent of subdivisions.
IR19) split up into a smaller Markazi, a new Tehran province, and portions which were annexed to Esfahan (former GEC code
IR06), Semnan (
IR18), and Zanjan (
IR21); part of Kerman province (
IR12) annexed to Yazd (
IR20); name of Baluchestan and Sistan province changed to Sistan and Baluchestan. This table shows the divisions of Iran at about the time of the 1986 census.
|Bovir Ahmadi and Kohkiluyeh||496,739||14,261||Yasuj|
|Chahar Mahall and Bakhtiari||747,297||14,870||Shahr-e-Kord|
|Sistan and Baluchestan||1,455,102||181,578||Zahedan|
IR.KR, ISO =
09, Dom =
kh, and GEC =
IR30, and its capital was Mashhad. The counties of Khorasan were distributed as follows: Bojnurd, Esfarayen, Jajarm, Maneh and Samalqan, and Shirvan to North Khorasan; Bardeskan, Chenaran, Darrehgaz, Fariman, Ferdows, Gonabad, Kalat, Kashmar, Khaf, Mashhad, Neyshabur, Qayenat, Quchan, Rashtkhar, Sabzevar, Sarakhs, Taybad, Torbat-e-Heydariyeh, and Torbat-e-Jam to Razavi Khorasan; and Birjand, Nehbandan, and Sarbisheh to South Khorasan.
IR.TH). It consists of Karaj, Nazarabad, and Savojbolagh counties.
|Chahar Mahall and Bakhtiari||340,612||298,448||394,357||631,179||747,297||761,168||857,910||895,263|
|Kohgiluyeh and Buyer Ahmad||161,219||244,370||411,828||496,739||544,356||634,299||658,629|
|Sistan and Baluchestan||428,363||454,966||664,292||1,197,059||1,455,102||1,722,579||2,405,742||2,534,327|
Sources for census data: 1956 - ; 1966 - ; 1976 - ; 1991 - ; 2011 - .
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