Croatia is considered to be a large nation because of its total area. Its total land area is 56,594 km² (approx. 21,851 mi²). Continental shelf of Croatia is approximately 50,277 km² (around 19,412 mi²). Croatia is located in Europe. Europe is a continent whose borders date back to the period of antiquity. European countries include, but are not limited to, the United Kingdom, Italy, Germany, Switzerland, Luxembourg, Malta, and The Vatican. Croatia has 5 neighbouring countries. Its neighbours include Bosnia and Herzegovina, Hungary, Montenegro, Serbia, Slovenia. Croatia is not a landlocked country. It means that is is bordered by at least one major body of water. The average elevation range of Croatia is 331 m (1,086 ft).

Neighbors
Total length of land borders of Croatia is 2237 kilometers (~864 miles). Croatia has 6 unique land boundaries with neigbouring territories and it shares its land borders with 5 different countries. Croatia has 1 non-contiguous section of land borders. This happens, when a country has a border with a neighbour, and this border is split by a border with another neighbour. Croatia has 5 neighbouring countries. Its neighbours include Bosnia and Herzegovina, Hungary, Montenegro, Serbia, and Slovenia. The lengths of the land borders of Croatia with its neighbouring countries are as follows:

Bosnia and Herzegovina - 932 km (579 mi),
Hungary - 329 km (204 mi),
Montenegro - 25 km (16 mi),
Serbia - 241 km (150 mi),
Slovenia - 670 km (416 mi).

http://www.confiduss.com/en/jurisdictions/croatia/geography/