In Nigeria, the postal codes are numeric and consist of six digits. The Nigerian Postal Service divides the country into nine regions, and each region code makes up the first digit of the six-digit code. The second and third digits, combined with the first, are the dispatch district for outgoing sorting, while the last three digits represent the delivery location, which can be a post office facility, a rural area, or an urban area. The lowest postal code in Nigeria is 100001, which is for Ikeja in Lagos, and the highest is 982112, which is for Mbara, Vandeikya in Benue State. The main postal head office in each region will have a postal code ending in 0001, so Garki Main HO in Abuja has the postal code 900001, Ikeja HO in Lagos has 100001, Lokoja in Kogi has 270001, and Port Harcourt has 500001. When filling out a form that requires a Nigeria zip code or postal code, you can use any of the following codes: 110001, 23401, or 00176.