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Land Waters

For the purpose of water management, Croatian territory is divided into four water districts plus the Zagreb Metropolitan Area water district. These water districts are:

• the Sava River basin,
• the Drava and Danube basin,
• the Dalmatian basin,
• the Istrian and Littoral basin.

Croatia can be considered a water-abundant country. Its overall renewable resources amount to 71.4 BCM or 14,900 m per capita, out of which about 60% are generated within Croatia and the remaining from upstream countries (namely, Slovenia, Austria, Bosnia and Herzegovina and Hungary). Resources are unevenly distributed throughout the country. These figures don’t account for flows from border rivers. When these flows are included, overall renewable resources amount to 156.3 BCM or 35,200 m3 per capita.

Mineral and thermal waters used in Croatia for medicinal and recreational purposes and for drinking are insufficiently exploited resources. There are 11 thermal health resorts. A total of 7.0 MCM mineral water is used yearly, of which 0.3 MCM is sold on the market.