The constitutional framework of Montenegro defines the state as a parliamentary representative democratic republic, where the Prime Minister serves as the head of government and the President acts as the head of state. Following the adoption of the 2007 Constitution, the country established a clear separation of powers between the executive, legislative, and judicial branches. The Parliament of Montenegro is a unicameral body consisting of 81 members elected for four-year terms through a system of proportional representation. This legislative body is responsible for enacting laws, ratifying international treaties, and appointing the Prime Minister and other cabinet members. The President, elected directly for a five-year term, performs largely ceremonial duties, including representing the country abroad and promulgating laws, though they hold the authority to propose candidates for the premiership and the Constitutional Court.

The demographic composition of Montenegro is characterized by a high degree of multi-ethnic diversity, where no single group forms an absolute majority. According to the most recent census data, ethnic Montenegrins constitute approximately 45% of the population, followed by Serbs at 29%, Bosniaks at nearly 9%, and Albanians at 5%. This mosaic is reflected in the linguistic landscape, where Montenegrin is the official language, but Serbian, Bosnian, Albanian, and Croatian are also recognized for official use. The relationship between Montenegrin and Serbian identities remains a central theme in national discourse, with census figures historically fluctuating as individuals navigate shared cultural, historical, and religious ties. Settlement patterns show a significant concentration of the population in the central plains near Podgorica and along the Adriatic coast, while the northern mountainous regions are more sparsely populated and home to larger concentrations of ethnic minorities.

The judicial system of Montenegro is rooted in the continental European legal tradition, heavily influenced by Roman law and the historical legacy of the Byzantine and Venetian empires. The hierarchy of the court system includes Basic Courts as the first instance of jurisdiction, followed by High Courts, and culminating in the Supreme Court, which serves as the highest judicial authority for regular legal matters. A separate Constitutional Court, consisting of seven judges appointed by Parliament for 12-year terms, ensures that all laws and regulations align with the national constitution and international agreements. One of the most significant historical legal documents is the General Property Code of 1888, drafted by Valtazar Bogišić, which codified customary law into a modern civil framework. Current judicial reforms focus on strengthening the independence of the Judicial and Prosecutorial Councils to ensure autonomy from political interference.