Sister cities of Las Piñas

The City of Las Piñas (Filipino: Lungsod ng Las Piñas) is a city in the National Capital Region of the Philippines with a population of 552,573 as of the 2010 Census. It is bounded to northeast by the Parañaque; to the southeast by Muntinlupa; to the west and southwest by Bacoor; and to the northwest by the Manila Bay. Half of its land area is residential and the remaining half is used for commercial, industrial and institutional purposes. The present physiography of Las Piñas consists of three zones: Manila Bay, coastal margin and the Guadalupe Plateau.

The city is bisected by Real (Spanish for Royal) Street, also known as the Alabang-Zapote Road. It forms part of the Maharlika Highway which spans the whole country. The Alabang–Zapote Road connects the South Luzon Expressway, which passes through Muntinlupa in the east, to the Coastal Road along Manila Bay.

The Coastal Road is a major tollway which runs the southern length of Metro Manila's shoreline with Manila Bay. It is an important artery for people commuting to-and-fro Las Piñas and Cavite to Manila.

In 2004, a new road called "Daang Hari" (Tagalog for King's Way) was completed at the border of Las Piñas and Muntinlupa. The road provides alternative access to the inner areas of both cities, including the neighboring municipalities of Bacoor, Cavite and San Pedro, Laguna. Daang Hari is a popular route for cyclists, especially on weekends.

Like its neighboring city, Muntinlupa, Las Piñas currently bans the use of plastics and styrofoam for packaging.