Austrian addresses use a four-digit postcode before the city and put the house number after the street. Österreichische Post routes on the postcode, where the first digit marks the state, so a wrong code sends the parcel to the wrong region. Here is the format and how to validate it.
An Austrian label is recipient, the street with the number and door, then the postcode and city, then the country.
Anna Gruber personal or business recipientKärntner Straße 12/5 street, house number, then door number (<code>12/5</code>) if any1010 Wien 4-digit postcode, then the cityAUSTRIA required for inbound international shipmentsThe four-digit postcode is Österreichische Post's core routing field and precedes the city. Its first digit maps to the federal state (1 Vienna), so a wrong leading digit misroutes the parcel.
Format: Four digits (1010); the first digit identifies the federal state.
Validation regex: ^\d{4}$
Watch for: a wrong leading digit, which changes the state, and a merged door number.
The country-specific rules that generic autocomplete and single-line address fields tend to get wrong.
The first digit of the postcode identifies the federal state (1 Vienna, 8 Styria, 6 Tyrol). A wrong leading digit sends the parcel to a different region.
Austrian addresses write the street then the number: Kärntner Straße 12. Number-first order is read wrong.
Apartments use the house number, a slash, then the door number (12/5). Splitting or dropping this points to the wrong unit.
Names and streets use ä, ö, ü, ß (Straße). Keep them or transliterate consistently (ß to ss) since a mix can cause mismatches.
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.
/5 door detail for last-mile delivery.Straße and Strasse across systems can cause mismatches.How the major carriers handle Austria addresses, and what your label needs to satisfy each one.
The national postal operator. Routing is four-digit-postcode driven, and the leading digit sets the state, so a valid code is the key field.
Major parcel carriers for Austrian ecommerce. They expect the street-then-number order, door number, and a clean postcode and city.
International carriers for inbound shipments. Include the country line; an accurate postcode avoids routing delays.
Address Guard checks Austria 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.