San Martín de Porres (SMP) is a district in Lima, Peru, located in the north area of the city.

The district was composed of the following haciendas: Chuquitanta, Pro, Naranjal, Infantas, Santa Rosa, Garagay Alto, G. Bajo, Chavarría, Mulería, Aliaga, Condevilla, San José, Palao, Huerta Sol, Oquendo, San Agustín and Marquez.

The district of Los Olivos was created in 1989, stripping some of San Martín de Porres' northeastern territory.

This dispute arose from the imprecision in the wording of the boundaries and the lack of cartography of the law, in addition to the disappearance of the original stone milestones due to the urbanization process.

[6] These districts argue that, when Los Olivos was created, part of the old industrial zone in San Martín de Porres would correspond to them to be annexed, however, according to San Martín de Porres, the law for the creation of a new district could not detail the transfer of territory to others not involved and because it was not an express request of the residents.

The second mentioned segment is from the eastern edge of Cerro La Regla moving south, crossing the Rímac River until reaching Colonial Avenue.

[8] The area in territorial conflict with the district of Comas has a triangular shape of 1.28 square kilometers.

It is delimited by San Bernardo, Panamericana Norte and Gerardo Unger avenues, up to the next bank of the Chillón River, and contains the urbanizations Santa Luisa, Santa Rosa de Infantas, Pro Industrial IV and IX Sector III Stage; the Municipal Human Settlement No.