After 28 years without a postal code system in Namibia, the national postal service provider NamPost introduced new postal codes in December 2018. They consist of five digits, where the first two indicate the region, the last two the post office and the third digit is always a 0. ''Address format examples''

Former South West Africa post codes

Before independence in 1990, when the country was under South African administration, it formed part of that country's post code system, but following independence, use of post codes was discontinued. South West Africa, including the

enclave An enclave is a territory (or a small territory apart of a larger one) that is entirely surrounded by the territory of one other state or entity. Enclaves may also exist within territorial waters. ''Enclave'' is sometimes used improperly to deno ...

of Walvis Bay, was allocated the number range 9000–9299.''South African Panorama'' – Volume 22
South African Information Service, 1977, page 9 P.O. Box 287 WINDHOEK 9100 P.O. Box 44 SWAKOPMUND 9180 P.O. Box 779 WALVIS BAY 9190 However, the code 9000 was commonly used for all addresses for mail from or via South Africa. Private Bag 13267 WINDHOEK 9000 Private Bag 5017 SWAKOPMUND 9000 P.O. Box 953 WALVIS BAY 9000''Monitoring in South African grasslands''
M. T. Mentis, National Programme for Environmental Sciences (South Africa). Committee for Terrestrial Ecosystems, CSIR Foundation for Research Development, Council for Scientific and Industrial Research, 1984, page 47 Walvis Bay remained under South African administration until 1994.Walvis Bay: exclave no more
Ieuan Griffiths, ''Geography'', Vol. 79, No. 4 (October 1994), page 354

References

{{Namibia topics Namibia Post Postal system of Namibia