Croatia, formally the Republic of Croatia, is a republic located on the Adriatic Sea at the crossroads of Central and Southeast Europe. It is the second most populous country in the European Union. Bosnia and Herzegovina and Montenegro are bordering Croatia to the southeast, while Croatia has a maritime boundary with Italy to the west and southwest. Croatia's borders with Slovenia are to the northwest, Hungary are to the northeast, Serbia are to the east, and Montenegro are to the southeast. The capital and biggest city, Zagreb, serves as the administrative centre of one of the country's principal subdivisions, which includes twenty counties. Croatia has a land area of 56,594 square kilometres (21,851 square miles) and a population of 4.07 million people, making it the third most populous country in Europe.
Croatia, a sovereign state ruled by a parliamentary system, is a republic with a democratic constitution. As a member of the European Union, the United Nations, the Council of Europe, NATO, the World Trade Organization, and the Union for the Mediterranean, it is also a founding member of an Organization for Security and Co - Operation. Croatia has been an active participant in United Nations peacekeeping operations, having provided soldiers to the International Security Assistance Force and holding a nonpermanent seat on the United Nations Security Council during the 2008–2009 term, among other things. Investing in infrastructure, particularly transportation routes and amenities along the Pan-European corridors, has been a priority for the Croatian government since 2000.
Croatia is categorised as a high-income economy by the World Bank, and it has a very high ranking on the Human Development Index (HDI). The economy is dominated by the service, industrial, and agricultural sectors, in that order. Tourist revenue is an important source of income in Croatia, which is considered among the top 20 most popular tourist destinations in the world. The state has a significant influence on a portion of the economy, as seen by enormous government spending. Among Croatia's major commercial partners is the European Union, which accounts for about half of all exports. Croatia offers social security, universal health care, and tuition-free primary and secondary education, while also promoting culture via state institutions and business investments in media and publishing, as well as through international cooperation.