El Salvador is the smallest and most densely populated country in Central America, located on the Pacific coast between Guatemala and Honduras. Its geography is defined by a narrow coastal plain, a central plateau, and two parallel mountain ranges that traverse the territory from west to east. Known as the "Land of Volcanoes," its landscape is dominated by more than 20 volcanic peaks, many of which remain active and have shaped the country's fertile but unstable soil. El Salvador is the only country in Central America that does not have a coastline on the Caribbean Sea.

The administrative structure of El Salvador consists of 14 departments, which are further subdivided into 44 municipalities as of a major legislative restructuring in 2024. This recent reform significantly reduced the number of municipal governments from 262 to streamline administration and resource allocation. Each department is headed by a governor appointed by the President, while the municipalities are governed by elected councils led by a mayor. The capital, San Salvador, serves as the primary political, financial, and cultural hub, housing the seats of the executive, legislative, and judicial branches.

The climate of El Salvador is tropical, characterized by distinct wet and dry seasons rather than significant temperature variations. The rainy season, known locally as invierno (winter), typically runs from May to October, while the dry season, or verano (summer), spans from November to April. Temperatures vary primarily with altitude; the coastal lowlands are consistently hot and humid, while the central plateau and mountain regions offer a more temperate environment. The country is highly susceptible to extreme weather events, particularly Pacific tropical storms and hurricanes, which can trigger widespread flooding and landslides in its steep terrain.