Port of Spain had a local campus enrollment of 15,571 in academic year 2007/2008. The University of Trinidad and Tobago has several campuses and institutes in the greater Port of Spain area including the research based Natural Gas Institute of the Americas and the Chaguaramas Centre for Maritime Studies. Port of Spain has a population of 18,008 males and 19,066 females, with 5,694 businesses and is home to 12,333 households with an average size of 2.9 according to the 2011 census. The city experienced an average annual growth rate of −2.3% between the censuses of 2000 and 2011 Port of Spain's diverse population
Port of Spain rainforest containing a wide variety of plants and animal species. Port of Spain lies at the western end and the city climbs into the hills and valleys which are settled and largely deforested. The two tallest peaks are El Cerro del Aripo and El Tucuche which top 900 m (3,000 ft). The 3278 hectare protected Caroni Swamp has long formed a physical barrier to the city's expansion to the south, forcing urban growth relentlessly eastward at the expense of a traffic relieving ring road. This west coast mangrove area is the island's second largest wetland after the east coast Nariva