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 1990, an extremist Muslim group held the prime minister and members of parliament hostage for 5 days while rioting and looting shook Port of Spain. The damage was a significant setback to the city's commercial district at a time of severe economic hardship, yet businesses returned. In 2005 there was an unprecedented series of small bombings in Port of Spain which caused injuries to bystanders. They ceased in October 2005 but the perpetrator has not been charged. Port of Spain measures about 10.4 km (c. 4 sq. mi) in area and is located in the northwest section of the island