List of countries and territories by the United Nations geoscheme

This is a list of countries and territories by the United Nations geoscheme, including 193 UN member states, two UN observer states (the Holy See and Palestine), two states in free association with New Zealand (the Cook Islands and Niue), and 49 non-sovereign dependencies or territories, as well as Western Sahara (a disputed territory whose sovereignty is contested) and Antarctica. In total, 248 countries and territories have been listed.

Source: Wikipedia — List of countries and territories by the United Nations geoscheme (CC BY-SA 4.0)