Home postal code Nigeria
Nigeria Postal Code validator
How the postal code format works
- Format
- 6 digits
- Example
- 100001
Things to watch for
- Format-only check — does not confirm the postal code actually exists
- Always exactly 6 digits with no separators
- NIPOST assigns every code, but day-to-day use is inconsistent — many Nigerian addresses and delivery apps still work without one
^[0-9]{6}$A Nigerian postal code is the 6-digit code NIPOST assigns to route mail — for example 100001 for central Lagos. Unlike some countries where the postal code is essential to every address, adoption in Nigeria has been uneven: many addresses, courier services, and web forms function fine without one, even though NIPOST maintains a full nationwide list. Anyone validating a Nigerian shipping address, checkout form, or spreadsheet of customer records where a postal code is supplied needs it to be the right length and shape before it’s trusted.
Because the code is a bare 6-digit run with no separator, a truncated entry (e.g. someone typing a shorter code from memory) or a stray extra digit can slip through unnoticed without a length check at the point of entry.
How this validator works
This tool checks that the input is exactly 6 digits with no letters, spaces, or hyphens, entirely in your browser — nothing is sent to a server, and there’s no signup.
What a pass doesn’t tell you
A Nigerian postal code carries no check digit, so confirming it’s 6 digits long is the most a client-side tool can do — not that NIPOST has assigned it to a real state or local government area. Confirming that requires NIPOST’s own postal code lookup.
Scope: this page and tool cover postal code format validation only — not address lookup, state/LGA matching, or confirming a code is currently in use.
postal code FAQ
How many digits does a Nigerian postal code have?
Always 6 — for example 100001 for central Lagos. NIPOST (the Nigerian Postal Service) assigns a code to every state and local government area, even though it's shorter than some other 6-digit systems in structure.
Is a Nigerian postal code actually used much in practice?
Less consistently than in many countries. NIPOST has assigned codes nationwide, but plenty of Nigerian addresses, delivery services, and everyday forms still work without one — so encountering an address with no postal code at all isn't necessarily an error, even though this validator only checks codes that are supplied.
Does a correctly formatted postal code mean it actually exists?
No. This tool only confirms the string is 6 digits — it doesn't check it against NIPOST's actual assignment list. Confirming a code is real requires NIPOST's own postal code lookup.