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

Tanzania - Country Information


Local short name form

Official name





International telephone access code


ISO 3166 country codes

Car nationality plate code


Internet country code


GRC Country Code


Tanzania - Languages


Languages map External

131 languages are spoken in Tanzania. The geographical distribution of these languages is complex. The official languages are English External (spoken mainly as a second language by about 1 500 000 people) and Swahili External (about 313 200 first-language and 23 000 000 second language speakers). Other widely spoken languages include Bena External (568 000 speakers); Chagga (1 000 000 speakers); Gogo External (1 300 000 speakers); Ha External (800 000 speakers); Haya External (1 200 000 speakers); Hehe External (750 000 speakers); Kachchi External (778 000 speakers); Makonde External (900 000 speakers); Nyamwezi (926 000 speakers); Nyaturu External (556 000 speakers); Ruguru External (520 000 speakers); Shambala External (550 000 speakers) and Sukumu External (5 000 000 speakers).

Tanzania - Personal names and forms of address


The forms of address and the way the name is formed differs throughout Tanzania. In coastal areas, for example, a married woman with children should be addressed as Mama followed by the name of one of her children. Given the number of children she may have, you can imagine the consequences for database matching operations. Other women adopt their husband’s family name upon marriage. In many areas, the form of address is followed only by the given name.

On Zanzibar, most people have Muslim names.

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

Tanzania - Example address format





Addresses consist of a post office box or a private bag and will usually be written in English. Tanazania Post is, however, developing a system for delivering mail to physical addresses.

Though postal deliveries are currently mainly to mailing addresses, street addresses will be found for the use of couriers, visitors etc. As not all streets are named, these may often be descriptive and unstructured, but usually written in English. Examples:





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

Tanzania - Post office box


This is written PO Box.

Tanzania - Postal codes


Tanzania has no postal code system.

A system is being implemented in certain areas of the country and where there is infrastructure (e.g. street names and building numbers) to support it. The code has 5 digits and the country has been divided into seven zones:

   1.Dar es Salaam
   2.Tanga, Kilimanjaro, Arusha
   4.Kigoma and Tabore, Dodoma
   5.Mbeya, Iringa, Rukwa
   6.Lindi, Mtwara, Ruvuma

with the postal code commencing with the zone number. The postal code will be written on the same line as, and before, the place name.

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

Tanzania - Postal code format

Tanzania - Postal code specifics

Tanzania - Postal code regular expression


Tanzania - Postal code level of coverage


Place names in Tanzania


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

Alternate place name forms/postal code tables can be acquired at External

Other language place name data can be acquired at External

Tanzania - Administrative districts


Administrative districts graphic

Telephone numbers in Tanzania


Tanzanian area codes have 2 digits when called from abroad, subscriber numbers have 7 digits. Mobile numbers have one of these area codes: 62, 65-68, 71, 73-79.

Tables of telephone number information/formats can be acquired – see External

Properties with value Tanzania

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 2017. Any information used should be acknowledged and referenced.