Provinces of Peru in the context of "Cusco Province"

The departments (Spanish: departamentos), informally called regions (Spanish: regiones), are the first-level administrative subdivisions of Peru. According to the Organic Law of Regional Governments, each department is administered by a regional government and a legislature responsible for administration, economic planning, and public services. These governments operate with autonomy while still coordinating with national authorities. Each department is led by a regional governor, who is elected by popular vote for a four-year term, and is responsible for implementing regional policies, managing budgets, and overseeing infrastructure projects. The governor is supported by a regional legislative council, composed of elected representatives from different provinces within the department. This council approves budgets, monitors public investments, and ensures government accountability.

There are 24 departments in total, as well as two provinces that operate under a special regime: Callao and Lima. The former does not belong to any department since 1836, but is nevertheless administered by a regional government of its own. The latter is administered by the Metropolitan Municipality of Lima, which is equal in status to a regional government.

Barranca (Spanish: [baˈraŋka]) is a province of the department of Lima, Peru. From the administrative point of view of the Catholic Church in Peru, it forms part of the Diocese of Huacho.

Lima (Spanish pronunciation: [ˈli.ma]), also called Metropolitan Lima (Spanish: Lima Metropolitana), is a province of the department of Lima, Peru. Located in its central coast, it operates under a quasi-autonomous special regime, and is thus not under the jurisdiction of the department's regional government. Its capital is Lima, which is also the nation's capital.

Despite its small area, this province is the major industrial and economic powerhouse of the Peruvian economy. It concentrates almost one-third of the country's population and 50% of Peru's GDP in 2012.

Callao (Spanish pronunciation: [kaˈʎao]) is a seaside city and constitutional province in Peru. Located next to the Pacific Ocean, it forms part of the Lima metropolitan area alongside Lima province. Its autonomous status dates back to 1836, when it was declared a Littoral Province of the Peru–Bolivian Confederation, after which it was declared a Constitutional Province by the government of Ramón Castilla in 1857.

Callao is Peru's chief seaport and home to its main airport, Jorge Chávez International Airport. Founded in 1537 by the Spaniards, the city has a long naval history as one of the main ports in Latin America and the Pacific, having been a vital Spanish town during the colonial era. Central Callao is about 15 km (9.3 mi) west of the Historic Centre of Lima.

Nazca is one of five provinces of the Ica Region of Peru. The capital of the province is the city of Nazca.

The Regional Government of Callao (Spanish: Gobierno Regional de Callao; GORE Callao) is the regional government that represents Callao. It is the body with legal identity in public law and its own assets, which is in charge of the administration of provinces of the department in Peru. Its purpose is the social, cultural and economic development of its constituency. It is based in the city of Callao.