HREurope · Southern Europe

Croatia Address Validation API

Validate and standardise Croatia addresses in real time. Get a matched address, geocoordinates, confidence score, and Poštanski broj data via a single API call.

NNNNN
Poštanski broj
OpenStreetMap
Data Source
Croatian
Languages
HIGH
Max Confidence

Croatia Address Validation Demo

Confidence:HIGH
POST /enrich — ResponseSample
{
  "_note": "Sample response — enter any address and click Validate for live data",
  "valid": true,
  "canonical_address": "Trg Svetog Marka 1, 10000 Zagreb",
  "confidence": "HIGH",
  "delivery_risk": "low",
  "matched_address": {
    "line1": "Trg Svetog Marka 1",
    "city": "Trg Svetog Marka",
    "postal_code": "10000 Zagreb",
    "country": "Croatia",
    "iso2": "HR"
  },
  "geocode": {
    "lat": 45.815,
    "lng": 15.9819
  },
  "data_source": "OpenStreetMap",
  "issues": []
}

Croatia Address Format

Croatian addresses include street name + house number, 5-digit postal code, and city. Zagreb uses 10000–10432. Addresses on islands and coastal areas may include the island name as an additional locality.

Postal Code Name
Poštanski broj
Format
NNNNN
Official Languages
Croatian
Sample address:
Trg Svetog Marka 1, 10000 Zagreb
Major cities:
ZagrebSplitRijekaOsijekZadarSlavonski BrodDubrovnik

Integration Code

curl -X POST https://agent.apitier.com/v1/enrich \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{"address": "Trg Svetog Marka 1, 10000 Zagreb"}'

Frequently Asked Questions

What address format does Croatia use?
Croatian addresses include street name + house number, 5-digit postal code, and city. Zagreb uses 10000–10432. Addresses on islands and coastal areas may include the island name as an additional locality.
What is a Poštanski broj in Croatia?
Croatia uses a Poštanski broj with the format NNNNN to identify delivery areas. The APITier Address Agent API validates and standardises addresses including the Poštanski broj as part of the response.
How do I validate a Croatia address via API?
Send a POST request to https://agent.apitier.com/v1/enrich with your address string in the request body and your API key in the x-api-key header. The response includes the standardised Croatia address, geocoordinates (lat/lng), a confidence score (HIGH/MEDIUM/LOW), and data source information.

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