_____ _____ Mongolia

Global Sourcebook for International Data Management

                                         by Graham Rhind



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For supplementary information, see links to post office home pages here External, to postal code pages here External and to other personal name and addressing issues pages here External.

Table of Contents

Mongolia - Country information


Local short name form

Official name



3 312 275 (2021 estimate) [1]



International telephone access code


ISO 3166 country codes

Car nationality plate code


Internet country code


GRC Country Code


Mongolia - Number format

   1 234,45

(where , indicates the decimal separator and a space the thousands separator)

Mongolia - Date and time formats


   Note: This section last updated 19th May 2021

Mongolia - Languages


12 languages are spoken in Mongolia. The national language is Mongolian External (Khlakha), spoken by about 90% of the population. There are 64 000 speakers of Buriat External; 35 000 Mandarin External-speakers; 205 000 Kalmyk-Oirat External-speakers; 120 000 Kazakh External-speakers and 27 000 Tuvin External-speakers.

Mongolia - Personal names


Mongolians have two given names and no family name. The first given name derives from the father’s name and usually ends with -iin or-yn. The second given name is the name used in mailings and on address blocks. It is usually written in capital letters on the envelope.

Women retain their names upon marriage.

   Tables of names can be acquired: given names External, surnames/family names External, family name prefixes External, forms of address External, job titles External

Mongolia - Example address formats


   Note: This section last updated 28th April 2020




Addresses may be descriptive, include directions such as “100 metres northwest of the Central Square” and may include street and/or district names. The 9 districts (дүүрэг, düüreg) of Ulan Bator, which are named, are split into 151 sub-districts (хороо, khoroo or horoo) which are numbered. Khoroolol (хороолол, horoolol) are neighbourhoods and are also numbered. They may appear in addresses in this way:

     12th Room, 37th Building Peace Avenue 
     Khan Uul District, 4th Khoroo 

Or in the opposite format:

     4th Khoroo, Khan Uul District 
     Peace Avenue, 37th Building, 12th Room 

The order in which the elements are written is not fixed.

The postal code is written to the right of the settlement name.

   A table containing information about the relevant position of elements within address blocks can be acquired External

Mongolia - Postal codes


   Note: This section last updated 25th December 2017

Postal codes have these formats:


The first digit indicates the region. The second indicates the province or, for Ulaanbaatar, the district.

For urban areas, digits 3 to 5 indicate the block or delivery zone code. Digits 6 to 9, if present, indicate a single delivery point. For rural areas digits 3 to 5 indicate the sub-district or village.

   Metadata containing postal code formatting rules, exceptions and regular expressions can be acquired External

Mongolia - Postal code format graphic



Mongolia - Postal code format

Mongolia - Postal code specifics

Mongolia - Postal code regular expression


Mongolia - Postal code level of coverage


Mongolia - Postal code map

image Click on the image for a larger version

Place names in Mongolia


   Note: This section last updated 27th May 2015

Refer to Exonyms in Mongolia for full lists of place names in Mongolia in other languages.

   Alternate place name forms/postal code tables can be acquired at http://www.grcdi.nl/settlements.htm External
   Other language place name data can be acquired at http://www.grcdi.nl/otherlanguageplace.htm External

Mongolia - Administrative districts

   Note: This section last updated 25th December 2017

Mongolia has 21 provinces (aymguud External, singular - aymag) and 1 municipality (Hot, plural hotuud; shown in the list below with an asterisk):

Province Postal codes
Arhangay External 65
Bayanhongor External 64
Bayan-Olgiy External 83
Bulgan External 63
Darhan Uul External 45
Dornod External 21
Dornogovi External 44
Dundgovi External 48
Dzavhan External 81
Govi-Altay External 82
Govi-Sumber External 42
Hentiy External 23
Hovd External 84
Hovsgol External 67
Omnogovi External 46
Orhon External 61
Ovorhangay External 62
Selenge External 43
Suhbaatar External 22
Tov External 41
Ulaanbaatar External * 11-18
Uvs External 85

Administrative districts graphic


Telephone numbers in Mongolia


   Note: This section last updated 9th February 2023

Mongolian fixed geographic numbers have a length of between 9 and 10 digits when called from abroad. Mobile numbers have a total length of 8 digits with one of these area codes: 50, 55, 60, 66, 69, 80, 811, 816, 8181, 8188, 83, 85-86, 88-89, 90-91, 93-99.

   Tables of telephone number information/formats can be acquired – see http://www.grcdi.nl/telephone.htm External 


  1. ^ citypopulation.de/en/mongolia/admin/ External 20230116

Every effort is made to keep this resource updated. If you find any errors, or have any questions or requests, please don't hesitate to contact the author.

All information copyright Graham Rhind 2024. Any information used should be acknowledged and referenced.