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
International School of Port of Spain year, enrollment was 325 (PK-grade 5: 135; grades 6-8: 99; and grades 9-12: 91). Of the total, 100 were U.S. citizens, 119 were host-country nationals and 106 were third-country nationals. Of the U.S. enrollment, 10 were dependents of U.S. Government direct-hire employees, 80 of U.S. business and foundation employees, and 10 of other private U.S. citizens. The School is located west of the capital city of Port of Spain in Westmoorings. The School is housed on a purpose-built campus that was opened in May 1999 on reclaimed land that used to be under the ocean nearby and is actually rapidly