Administratively, the historic city of Porto is divided into 15 civil parishes:

Aldoar: is a Portuguese parish, located in the municipality of Porto. It has a population of 13,957 inhabitants and a total area of 2,36 km².

Bonfim: is a Portuguese parish, located in the municipality of Porto. It has a population of 28,578 inhabitants and a total area of 3.05 km².

Campanhã: is a Portuguese parish, located in the city of Porto. It has a population of 38,757 inhabitants and a total area of 8.13 km². Located there is the Campanhã train station, one of the most important in Porto.

Cedofeita: is a Portuguese parish, located in the municipality of Porto. It has a population of 24,784 inhabitants and a total area of 2.66 km².

Local landmarks include the Church of Cedofeita (dedicated to Saint Martin), the Mouzinho de Albuquerque Plaza, the Oliveira's Fountain, several chapels and modern architecture buildings.

The film director Manoel de Oliveira was born here in 1908. Casa da Pedra is located in Cedofeita.

Foz do Douro: is a Portuguese parish of the city and of Porto municipality. It has 12,235 inhabitants and is 3.00 km² in area. It became a parish in 1836. It is located in the western part of Oporto, next to the mouth of the Douro river and the Atlantic Ocean.It is one of the most affluent areas of city Oporto, and known for being inhabited by the upper classes.

Lordelo do Ouro: is a Portuguese parish, located in the municipality of Porto. It has a population of 22,212 inhabitants and a total area of 3.40 km², overlooking the Douro river, in the city of Porto.

Local landmarks include the São Martinho de Lordelo Church, the Serralves park and modern art museum, along with other modern architecture buildings. The church is very important to the local inhabitants and services are still held there.

Massarelos: is a Portuguese parish, located in the municipality of Porto. It has a population of 7,756 inhabitants and a total area of 1.94 km².

The municipality includes parts of the city's old downtown, classified by UNESCO as a World Heritage Site. Other landmarks include Porto's main Custom House, Rosa Mota sports hall, Porto's major fish market and the Campo Alegre neighborhood, where a theatre and several buildings of the University of Porto are located.

Miragaia: is a Portuguese parish of the municipality of Porto. It is 0.49 km² in area with 2,810 inhabitants as of 2001.

Local landmarks include Santo António Hospital, the ancient city walls of Porto, built by Ferdinand I and several palaces and churches.

Nevogilde: is a Portuguese parish of the municipality of Porto. It is 2.00 km² in area with 5,257 inhabitants as of 2001.

Paranhos: is a parish in the municipality of Porto, Portugal.

It has an area of 6.67 km² and a population of 48,686 (as of 2001) giving a population density of 7,299 inhabitants per km². Local landmarks include the Areosa Church, various faculties of the University of Porto and the sprawling Hospital de São João (Saint John Hospital).

Ramalde: is a Portuguese parish of the municipality of Porto. It is 5.68 km² in area with 37,647 inhabitants as of 2001.

São Nicolau: is a Portuguese parish of the municipality of Porto. It is 0.21 km² in area with 2,937 inhabitants as of 2001.

Santo Ildefonso: is a Portuguese parish of the municipality of Porto. It is 1.28 km² in area with 10,044 inhabitants as of 2001.

Sé: is a Portuguese parish, located in the municipality of Porto. It has a population of 4,751 inhabitants and a total area of 0.48 km².

Sé is one of the four districts within the UNESCO World Heritage Classified Zone of Porto, the others being São Nicolau, Vitória, and Miragaia.

Local landmarks include Porto Cathedral (which gave the name to the parish), Santa Clara Church, several chapels and episcopal buildings. It is also the location of the major São Bento train station.

Vitória: is a Portuguese parish of the municipality of Porto. It is 0.31 km² in area with 2,720 inhabitants as of 2001.

Vitória is one of the four districts within the UNESCO World Heritage Classified Zone of Porto, the others being São Nicolau, Sé, and Miragaia.

A major landmark of Vitória is the Clérigos Tower ("Torre dos Clérigos").

The Vitória district is bounded by the Cedofeita, Santo Ildefonso, São Nicolau, Sé, and Miragaia districts.