Slovak addresses place a five-digit postal code, written with a space as NNN NN, before the town on the same line, and carry no region field. Get the code or its spacing wrong and Slovenská pošta routes the parcel to the wrong delivery area. Here is the correct structure, a real example, and the mistakes that cause returns.
A Slovak label is recipient, optional company, the street with its house number, then the five-digit PSČ and the town on one line, then the country. There is no region or district line.
Ján Novák personal or business recipientPríklad s.r.o. optional, above the street line (s.r.o. is a Slovak limited company)Michalská 12 street name first, then the house number811 01 Bratislava 5-digit PSČ written NNN NN, then the town, on one lineSLOVAKIA required for inbound international shipmentsThe PSČ (Poštové smerovacie číslo) defines the delivery post office and drives Slovenská pošta sorting. It is written before the town, the reverse of the US city-then-ZIP habit, and the internal space is part of the standard format.
The country-specific rules that generic autocomplete and single-line address fields tend to get wrong.
The Slovak postal code is five digits written NNN NN, for example 811 01. The space is part of the standard, and a form that stores it as 81101 or splits it wrong can fail carrier validation.
On the address line the PSČ precedes the town, as 811 01 Bratislava, the reverse of the US city-then-ZIP order. A checkout that prints Bratislava 811 01 confuses automated sorting.
Slovenská pošta routes on the PSČ, not the kraj (region). Adding a region line is unnecessary and can misalign a parsed address. The required fields are street, PSČ, and town only.
Many Slovak addresses combine a descriptive and an orientation number with a slash, for example Štúrova 12/3. Dropping the slash or one of the numbers points to the wrong building.
Each of these passes a basic "is this field filled in" check but fails at the carrier, turning into a redelivery, a return, or an address correction fee.
81101 instead of 811 01 can fail carrier lookups that expect the NNN NN format.Bratislava 811 01 reverses the expected 811 01 Bratislava order and stalls sorting.Štúrova 12 instead of Štúrova 12/3 can point to the wrong building where both numbers are used.Štúrova and Sturova across systems can cause address mismatches.How the major carriers handle Slovakia addresses, and what your label needs to satisfy each one.
The national postal operator and last-mile partner for most inbound international mail. Sorting is PSČ-driven, so a valid five-digit code with its internal space is the most important field on the label.
Major parcel networks for Slovak ecommerce, both built on pickup points and lockers. They expect the street with its house number and a clean PSČ and town line for accurate delivery.
International carriers for inbound shipments. Include the country line and keep Slovak diacritics consistent; they charge for address corrections on misrouted parcels.
Address Guard checks Slovakia addresses against carrier and postal databases before the order ships, normalizes the format, and flags the errors that cause failed deliveries. 240+ countries, $0.05 per check.
Part of the Address Guard international address format guide, covering 240+ countries.