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Ukraine поштовий індекс validator
How the поштовий індекс format works
- Format
- 5 digits
- Example
- 01001
Things to watch for
- Format-only check — does not confirm the поштовий індекс actually exists
- Always exactly 5 digits with no separators
- Kyiv addresses cluster in the 01xxx range; the first two digits broadly identify the oblast (region)
^[0-9]{5}$A Ukrainian поштовий індекс (poshtovyi indeks) is the 5-digit postcode Ukrposhta uses to route mail, written directly before the city name — for example 01001 for a central Kyiv address. The first two digits broadly identify the oblast, or region, with Kyiv sitting at the low end of the national range; the remaining three digits narrow delivery toward a specific district or post office. Anyone validating a Ukrainian shipping address, a checkout form, or a spreadsheet of customer records needs the index in the correct 5-digit shape before it’s trusted.
Because it’s a bare run of digits with no separator, a dropped or duplicated digit produces a code that’s still superficially plausible — an error that’s cheap to catch at entry and costlier once mail has already been sorted to the wrong oblast.
How this validator works
This tool checks that the input is exactly 5 digits with no letters, spaces, or hyphens, entirely in your browser, with nothing sent to a server.
What a pass doesn’t tell you
A поштовий індекс carries no check digit, so matching the 5-digit shape is the most a client-side tool can confirm — not that Ukrposhta has assigned it to a real district. Confirming that requires Ukrposhta’s own postcode lookup.
Scope: this page and tool cover format validation only — not address lookup or confirming a поштовий індекс is currently in use.
поштовий індекс FAQ
What is a поштовий індекс and how many digits does it have?
Poshtovyi indeks means 'postal index' — Ukraine's 5-digit postcode, written directly before the city name, e.g. 01001 Kyiv for a central Kyiv address.
What does the leading digit or two of a Ukrainian postal index mean?
The first two digits broadly identify the oblast (region), with the capital Kyiv occupying the low 01xxx block; the remaining digits narrow delivery down toward a specific post office or district within that region.
Does a correctly formatted поштовий індекс mean it actually exists?
No. This tool only confirms the string is 5 digits — it doesn't check it against Ukrposhta's actual assignment list. Confirming a поштовий індекс is real, and seeing which district it names, requires Ukrposhta's own postcode lookup.